Showing posts with label Space Program. Show all posts
Showing posts with label Space Program. Show all posts

Friday, April 25, 2014

Imam Khomeini Space Center - Iran



Courtesy Of The: Nuclear Threat Initiative (NTI)

Iran inaugurated the Semnan Spaceport (now known as the Imam Khomeini Space Center) in early 2008, with a test launch of the Kavoshgar 1 (Explorer 1) rocket, which appeared to be a modified Shahab-3B. [1] Construction of the complex reportedly began in 2003. [2] Satellite images taken of the site in 2009 show extensive infrastructure development including the construction of a horizontal rocket assembly and checkout building, and an engine test stand. [3]
The older launch complex is comprised of a circular pad, which replaced the original dirt patch. It has a collapsible umbilical tower to support the Safir space launch vehicle (SLV) and other rockets. In February 2009, Iran successfully launched an 'Omid' satellite weighing 27kg into orbit from the Semnan site using the Safir two-stage rocket. [4] In May 2009, Iran successfully tested a Sejil 2 medium-range surface-to-surface missile launched from or close to the Semnan site. [5]
In March 2010, satellite images revealed the construction of a second launch pad roughly 3km east of the original site. [6] It includes a gantry tower, an umbilical tower, and two flame trenches. The gantry tower is aproximately 45m tall, which far exceeds the needs of the Safir or Simorgh SLVs.
Iran also constructed an engine test stand, suggesting it will test new or indigionous designs.
Sources:
[1] Aresu Eqbali, "Iran Opens First Space Centre, Launches Rocket," AFP, 4 February 2008; James Hackett, "Iran's Great Missile Leap," The Washington Times, 25 February 2008, www.washingtontimes.com.
[2] "Nuclear Iran, Production Capability," Jane's CBRN Assessments, 1 October 2009, www.janes.com.
[3] "Massive Construction Visible at Iran's Missile and Space Center at Semnan," Defense Update, 5 November 2009, www.defense-update.com.
[4] Geoffrey Forden, "Congratulations Iran!" Arms Control Wonk Blog, 3 February 2009, www.armscontrolwonk.com.
[5] Ali Akbar Dareini, "Iran Tests Missile with Range that Can Hit Israel," AP Online, 21 May 2009; "Iran Missile Test Appears 'Successful,' U.S. Officials," AFP, 20 May 2009.
[6] Yaakov Katz, "New Iranian Missile Launch Pad Revealed," The Jerusalem Post, 7 March 2010, www.jpost.com.

Monday, February 25, 2013

The Hubble Ultra Deep Field In 3D



I've recently discovered an animation that was rendered using the measured redshift of all 10,000 galaxies in the Hubble Ultra Deep Field image.

I've written a short script that leads you through a quick history of both deep field images and this video ends with a fly-through of the Ultra Deep Field.

Every galaxy in the image is in its proper distance as viewed from the telescope line of sight.

As if this image wasn't amazing enough.

Animation Credit:

Hubble Cosmological Redshift Animation Courtesy:
http://hubblesite.org/newscenter/archive/releases/2004/28/video/b/

Mike Gallis

http://phys23p.sl.psu.edu/phys_anim/Phys_anim.htm
http://www.youtube.com/watch?v=e6G2Z6iD-9M

Music Used in this video was purchased from stockmusic.net and belongs to the Spirit Legends Collection.

The tunes I used were:

Voice Redo B
Voice in the Dark

Link to demos:

http://www.stockmusic.net/index.cfm/page/main.collectionDetails/collectionId/67

Wednesday, February 13, 2013

NASA Starts Work On Real Star Trek Warp Drive

NASA Starts Work on Real Life Star Trek Warp Drive

"Perhaps a Star Trek experience within our lifetime is not such a remote possibility." These are the words of Dr. Harold "Sonny" White, the Advanced Propulsion Theme Lead for the NASA Engineering Directorate. Dr. White and his colleagues don't just believe a real life warp drive is theoretically possible; they've already started the work to create one.

Searching For Warp Bubbles

The answer lies precisely in those laws of physics. Dr. White and other physicists have found loopholes in some mathematical equations—loopholes that indicate that warping the space-time fabric is indeed possible.
Working at NASA Eagleworks—a skunkworks operation deep at NASA's Johnson Space Center—Dr. White's team is trying to find proof of those loopholes. They have "initiated an interferometer test bed that will try to generate and detect a microscopic instance of a little warp bubble" using an instrument called the White-Juday Warp Field Interferometer.
It may sound like a small thing now, but the implications of the research huge. In his own words:
Although this is just a tiny instance of the phenomena, it will be existence proof for the idea of perturbing space time-a "Chicago pile" moment, as it were. Recall that December of 1942 saw the first demonstration of a controlled nuclear reaction that generated a whopping half watt. This existence proof was followed by the activation of a ~ four megawatt reactor in November of 1943. Existence proof for the practical application of a scientific idea can be a tipping point for technology development.
By creating one of these warp bubbles, the spaceship's engine will compress the space ahead and expand the space behind, moving it to another place without actually moving, and carrying none of the adverse effects of other travel methods. According to Dr. White, "by harnessing the physics of cosmic inflation, future spaceships crafted to satisfy the laws of these mathematical equations may actually be able to get somewhere unthinkably fast—and without adverse effects."
He says that, if everything is confirmed in these practical experiments, we would be able to create an engine that will get us to Alpha Centauri "in two weeks as measured by clocks here on Earth." The time will be the same in the spaceship and on Earth, he claims, and there will not be "tidal forces inside the bubble, no undue issues, and the proper acceleration is zero. When you turn the field on, everybody doesn't go slamming against the bulkhead, which would be a very short and sad trip."

There was only one problem with all this: where does the energy come from? While we knew that warp drives were theoretically possible, physicists have always argued that they would require a ball of exotic matter the size of Jupiter to power it. Clearly, that was not practical. But thankfully, Dr. White has found a solution that changes the game completely.

The Eagleworks team has discovered that the energy requirements are much lower than previously thought. If they optimize the warp bubble thickness and "oscillate its intensity to reduce the stiffness of space time," they would be able to reduce the amount of fuel to manageable amount: instead of a Jupiter-sized ball of exotic matter, you will only need 500 kilograms to "send a 10-meter bubble (32.8 feet) at an effective velocity of 10c."
Ten c! That's ten times the speed of light, people (remember, the ship itself would not go faster than the speed of light. But effectively it will seem like it does).
That means that we would be able to visit Gliese 581g—a planet similar to Earth 20 light years away from our planet—in two years. Two years is nothing. It took Magellan three years to circumnavigate around our home planet—from August 1519 to September 1522. A four year roundtrip to see a planet like Earth is completely doable. And there are even closer destinations where we can send robots or astronauts.
The important thing is that there is now a door open to a different kind of exploration. That, like Dr. White says, "perhaps a Star Trek experience within our lifetime is not such a remote possibility." We may be witnessing the very beginning of a new age of space exploration, one that would finally take us from our pale blue dot back to where we belong.
Via: "Gizmodo"

Monday, February 11, 2013

Wanted: Mars Colonists To Explore Red Planet




If you think you have the right stuff to help colonize Mars, you'll soon get your chance to prove it.
The Netherlands-based nonprofit Mars One, which hopes to put the first boots on the Red Planet in 2023, released its basic astronaut requirements today (Jan. 8), setting the stage for a televised global selection process that will begin later this year.
Mars One isn't zeroing in on scientists or former fighter pilots; anyone who is at least 18 years old can apply to become a Mars colony pioneer. The most important criteria, officials say, are intelligence, good mental and physical health and dedication to the project, as astronauts will undergo eight years of training before launch.
"Gone are the days when bravery and the number of hours flying a supersonic jet were the top criteria," Norbert Kraft, Mars One's chief medical director and a former NASA researcher, said in a statement. "Now, we are more concerned with how well each astronaut works and lives with the others, in the long journey from Earth to Mars and for a lifetime of challenges ahead."
Mars One plans to launch a series of robotic cargo missions between 2016 and 2021, which will build a habitable Red Planet outpost ahead of the arrival of the first four colonists in 2023. More settlers will arrive every two years after that. There are no plans to return the pioneers to Earth.
The organization will fund most of its ambitious activities by staging a global reality-TV event that follows the colonization effort from astronaut selection through the settlers' first years on Mars.
Mars One, which transitioned from a private company to a nonprofit late last year, has already received a number of inquiries from prospective colonists, officials said.
"Well before the official Astronaut Selection Program, we received more than 1,000 emails from individuals who desire to go to Mars," Suzanne Flinkenflögel, Mars One's communications director, said in a statement. "We are working hard to launch our selection campaign as soon as possible, to open the doors to everyone who aspires to do something tremendous in their lifetime."
Final astronaut candidates will be selected after review by Mars One experts and a global TV event. Those chosen will be employed by Mars One during their Earth-based training and for the length of their time on the Red Planet, officials said.
To learn more about the selection process, go to The Next Giant Leap
Via: "Space"

Tuesday, February 05, 2013

The Birth Of A Planet




Astronomers studying a newborn star have caught a detailed glimpse of planets forming around it, revealing a never-before seen stage of planetary evolution.
Large gas giant planets appear to be clearing a gap in the disk of material surrounding the star, and using gravity to channel material across the gap to the interior, helping the star to grow. Theoretical simulations have predicted such bridges between outer and inner portions of disks surrounding stars, but none have been directly observed until now.
An international team of astronomers have used the partially completed Atacama Large Millimeter/submillimeter Array (ALMA) to study a young star about 450 light-years from Earth. They identified two thin filaments of gas streaming from the outer disk to the inner, across a broad gap cut by young planets.
"Currently, the only mechanism known to produce such gap-crossing dense molecular flows, with residual carbon monoxide gas more diffusely spread out inside the gap, is planetary formation," lead scientist Simon Casassus of the University of Chile told SPACE.com in an email.
Bridging The Gap
Far from Earth, the fledgling star HD 142527 is nearing the end of its formation process. Around 2 million years old, the young star is about twice as massive as the sun, though it is still slowly growing. A disk of spinning dust and gas left over from its formation surrounds the star, and from this material, planets are being created. 
As baby planets, or planetesimals, travel through the disk, they absorb the material around them, creating gaps. Such paths have been seen in a number of newborn systems. HD 142527 boasts a gap that starts at a point equivalent to Saturn's position in the solar system and extends outward 14 times as far. The gap, which scientists had previously measured, is so large that several planets would be required to clear it of debris.
Using ALMA to observe the system, Casassus and his team have found that the gap is not completely empty. Two filaments reach from the outer disk to the inner, indicating that at least two young planets exist within the space.

These bridges are important to the continued growth of the system's young sun. The inner disk around the star is too small to sustain its growth; Casassus and his team concluded that the disk around HD 142527 would be depleted within a year without a bridge. Planets funneling material from the outer disk to the inner would help nourish their star.
The process won't continue forever, however.

"Eventually, the proto-gaseous giants will exhaust the material within their radius of influence," Casassus said. "How much material will have infallen, in what timescales, and how this impacts the planet location and eventual migration are all open questions in the field of planet formation. Our observations are a step forward."
Mind The Gap
In addition to revealing the bridges between the two disks, ALMA's detailed measurements showed that the gaps weren't completely empty. Instead, they contain traces of carbon monoxide gas.
"This residual gas was predicted by all dynamical calculations, but previous detections were not as clear-cut and direct as the ALMA result," Casassus said.
The data was taken by ALMA during its first year of observation. The array of 66 telescopes, set up in Chile, is still under construction but should be completed this year, at which point Casassus plans to observe the system in greater detail.
Although the dense gas of the filaments would obstruct a direct view of the young planets, studying the system at the higher resolution of the completed ALMA could reveal knots along the filaments that could signify their location.
At the same time, a more precise examination of the leftover gas in the gaps could help astronomers to narrow down the mass of the developing planets.
The research was published online today (Jan. 2) in the journal Nature.
Via: "Space"

Tuesday, January 22, 2013

TDRS: Communicating Critical Data



As a vital information pipeline for space-based research and exploration ambitions, the TDRS constellation fulfills NASA's broadest communication demands. 

Now into it's fourth operational decade, the TDRS legacy continues to be communications excellence. 

The addition of the third generation of spacecraft will replenish the constellation and ensure that the critical lifeline of space-to-ground communication support will be available for many years to come. 

Sunday, December 23, 2012

NASA / Google Test Launch DTN (Interplanetary Internet)



DTN Flight Validation Experiment
https://www.spacecomm.nasa.gov/spacecomm/programs/technology/dtn/ )

October 18, 2008:
The ION DTN software was successfully uploaded to the EPOXI spacecraft and activated on the backup flight computer and network traffic was observed being sent and received to/from the spacecraft in the DINET Experiment Operations Center.

October 20, 2008:
Images were successfully received at JPL via the first instance of an interplanetary network from the EPOXI spacecraft located approximately 80 light seconds from Earth. These same images were transmitted to the EPOXI spacecraft about 3 hrs earlier via the same network.

October 22, 2008:
During experiment Pass 2, 264046 bytes (5 images) delivered. ~97.6% link utilization.

October 27 & 29, 2008:
DINET tracking passes 3 and 4 were conducted. All contacts were completed successfully, with no diagnostic messages reported by the DINET software.

November 3, 2008:
During the 5th DSN tracking pass of the DINET experiment, an additional 35 image files totaling 1,587,420 bytes were delivered via the interplanetary network to image reception software in the DINET Experiment Operations Center.

--

The Deep Impact Networking Experiment is sponsored by the Space Communications and Navigation Office in NASA's Space Operations and Mission Directorate in Washington.

Saturday, December 22, 2012

Cosmic Journeys : The Largest Black Holes In The Universe



A supermassive black hole is the largest type of black hole in a galaxy, on the order of hundreds of thousands to billions of solar masses. Most--and possibly all--galaxies, including the Milky Wa y(see Sagittarius A), are believed to contain Supermassive black holes at their centers.

Supermassive black holes have properties which distinguish them from lower-mass classifications. First, the average density of a supermassive black hole (defined as the mass of the black hole divided by the volume within its Schwarzschild radius) can be less than the density of water in the case of some supermassive black holes.

Donald Lynden-Bell and Martin Rees hypothetized in 1971 that the center of the Milky Way galaxy would contain a supermassive black hole. Sagittarius A was discovered and named on February 13 and 15, 1974, by astronomers Bruce Balick and Robert Brown using the baseline interferometer of the National Radio Astronomy Observatory. They discovered a radio source that emits synchrotronic radiation, also it was found to be dense and immobile because of its gravitation. Therefore, the first discovered supermassive black hole existed in the center of the Milky Way.

Supermassive Black Holes Outside The Milky Way

It is now widely accepted that the center of nearly every galaxy contains a supermassive black hole.

It is believed that black holes and their host galaxies coevolved between 300-800 million years after the Big Bang, passing through a quasar phase.

The nearby Andromeda Galaxy, 2.5 million light-years away, contains a (1.1–2.3) × 108 (110-230 million) solar mass central black hole, significantly larger than the Milky Way's.

The largest supermassive black hole in the Milky Way's neighborhood appears to be that of M87, weighing in at (6.4 ± 0.5) × 109 (~6.4 billion) solar masses at a distance of 53.5 million light years.

On 5 December 2011 astronomers discovered the largest super massive black hole yet found to be that of NGC 4889, weighing in at 21 billion solar masses at a distance of 336 million light-years away in the Coma constellation.

Some galaxies, such as Galaxy 0402+379, appear to have two supermassive black holes at their centers, forming a binary system.

Binary supermassive black holes are believed to be a common consequence of galactic mergers. The binary pair in OJ 287, 3.5 billion light years away, contains the previous most massive black hole known (until the December 2011 discovery, with a mass estimated at 18 billion solar masses.

A supermassive black hole was recently discovered in the dwarf galaxy Henize 2-10, which has no bulge. The precise implications for this discovery on black hole formation are unknown, but may indicate that black holes formed before bulges.

On March 28, 2011, a supermassive black hole (SMBH) was for the first time seen tearing a mid-size star apart. That is, according to astronomers, the only likely explanation of the observations that day of sudden X-ray radiation and the follow-up broad-band observations.

The source was previously an inactive galactic nucleus, and from study of the outburst the galactic nucleus is estimated to be a SMBH with mass of the order of a million solar masses. This rare event is assumed to be a relativistic outflow (material being emitted in a jet at a significant fraction of the speed of light) from a star tidally disrupted by the SMBH. A significant fraction of a solar mass of material is expected to have accreted onto the SMBH. Subsequent long-term observation will allow this assumption to be confirmed if the emission from the jet decays at the expected rate for mass accretion onto a SMBH.

Info via: "Wikipedia"

Monday, December 17, 2012

Enjoy A Tour Of The International Space Station



In her final days as Commander of the International Space Station, Sunita Williams of NASA recorded an extensive tour of the orbital laboratory and downlinked the video on Nov. 18, just hours before she, cosmonaut Yuri Malenchenko and Flight Engineer Aki Hoshide of the Japan Aerospace Exploration Agency departed in their Soyuz TMA-05M spacecraft for a landing on the steppe of Kazakhstan. 

The tour includes scenes of each of the station's modules and research facilities with a running narrative by Williams of the work that has taken place and which is ongoing aboard the orbital outpost.

Sunday, December 16, 2012

Welcome To The Multiverse



The multiverse (or meta-universe) is the hypothetical set of multiple possible universes (including the historical universe we consistently experience) that together comprise everything that exists and can exist: the entirety of space, time, matter, and energy as well as the physical laws and constants that describe them. The term was coined in 1895 by the American philosopher and psychologist William James. The various universes within the multiverse are sometimes called parallel universes.

The structure of the multiverse, the nature of each universe within it and the relationship between the various constituent universes, depend on the specific multiverse hypothesis considered. Multiple universes have been hypothesized in cosmology, physics, astronomy, religion, philosophy, transpersonal psychology and fiction, particularly in science fiction and fantasy. In these contexts, parallel universes are also called "alternative universes", "quantum universes", "interpenetrating dimensions", "parallel dimensions", "parallel worlds", "alternative realities", "alternative timelines", and "dimensional planes," among others.

Thursday, November 29, 2012

Tractor Beams




Stand aside, Wesley Crusher: there's a new tractor beam on deck that pulls objects using nothing more than laser light. The device has already grabbed NASA's attention as it could one day prove useful on space missions.
It is well known that light can push on objects – this is the basis for using solar sailsMovie Camera to propel a spacecraft. But getting light to pull on something is a bit trickier.
Previous laser-based tractor beams could act like tweezers to move particles, picking up the sample and putting it down a short distance away. A more recent version actually pulls on particles, but relies on temperature variationsin the beam, which means it cannot function in space.
In 2011, researchers in China calculated that a type of laser called a Bessel beam, which puts out light in concentric rings, could be designed to make a particle inside the beam emit photons on the side facing away from the beam source. These photons should allow the particle to recoil towards the source. But nobody has so far managed to put the idea into practice.
David Ruffner and David Grier of New York University instead projected two Bessel beams side by side and used a lens to angle them so that they overlapped, creating a pattern of alternating bright and dark regions. Fine-tuning the beam caused photons in the bright regions to scatter toward the beam source, pushing a particle in the beam to the next bright region. The beam thus acts like a conveyer belt, constantly drawing the particle toward the source.

Micrometre Moves

Ruffner and Grier used this set-up to move microscopic silica spheres suspended in water over distances of around 30 micrometres. This suggests that such beams could be used to move cells around in lab-on-a-chip devices that perform medical tests. The set-up can also work in air or in the vacuum of space.
This tractor beam set-up has stronger interactions with a wider range of microscopic objects than other versions, adds David McGloin of the University of Dundee, UK, who was not part of the team. "A lot of other tractor-beam technologies are often quite particle-specific," he says.
The new tractor beam might be useful for collecting small dust or atmosphere samples from other worlds and delivering the particles to a robot for analysis.
"NASA contacted us," says Ruffner. "They were wondering, can we put this on a space probe and get dust from a comet?" It is possible, he says, but not any time soon. "This is still very much in its infancy."
Journal reference: Physical Review Letters, DOI: 10.1103/PhysRevLett.109.1

Saturday, August 11, 2012

Van Gogh Sun



A crucial, and often underappreciated, facet of science lies in deciding how to turn the raw numbers of data into useful, understandable information -- often through graphs and images. Such visualization techniques are needed for everything from making a map of planetary orbits based on nightly measurements of where they are in the sky to colorizing normally invisible light such as X-rays to produce "images" of the sun.

More information, of course, requires more complex visualizations and occasionally such images are not just informative, but beautiful too.

Such is the case with a new technique created by Nicholeen Viall, a solar scientist at NASA's Goddard Space Flight Center in Greenbelt, Md. She creates images of the sun reminiscent of Van Gogh, with broad strokes of bright color splashed across a yellow background. But it's science, not art. The color of each pixel contains a wealth of information about the 12-hour history of cooling and heating at that particular spot on the sun. That heat history holds clues to the mechanisms that drive the temperature and movements of the sun's atmosphere, or corona.

To look at the corona from a fresh perspective, Viall created a new kind of picture, making use of the high resolution provided by NASA's Solar Dynamics Observatory (SDO). SDO's Atmospheric Imaging Assembly (AIA) provides images of the sun in 10 different wavelengths, each approximately corresponding to a single temperature of material. Therefore, when one looks at the wavelength of 171 Angstroms, for example, one sees all the material in the sun's atmosphere that is a million degrees Kelvin. By looking at an area of the sun in different wavelengths, one can get a sense of how different swaths of material change temperature. If an area seems bright in a wavelength that shows a hotter temperature an hour before it becomes bright in a wavelength that shows a cooler temperature, one can gather information about how that region has changed over time.

Viall's images show a wealth of reds, oranges, and yellow, meaning that over a 12-hour period the material appear to be cooling. Obviously there must have been heating in the process as well, since the corona isn't on a one-way temperature slide down to zero degrees. Any kind of steady heating throughout the corona would have shown up in Viall's images, so she concludes that the heating must be quick and impulsive -- so fast that it doesn't show up in her images. This lends credence to those theories that say numerous nanobursts of energy help heat the corona.

This video is public domain and can be downloaded at:http://svs.gsfc.nasa.gov/goto?11046


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Saturday, August 04, 2012

Alien Planet



Storyline

The CGI or computer animated drama/documentary takes place on Darwin IV, a planet 6.5 light years from earth, with 2 suns and 60% of Earth's gravity. 



Having identified Darwin as a world that could support life, Earth sends a pilot mission consisting of the Mothership Von Braun and three probes: Balboa, Da Vinci, and Newton. 


This robotic fleet is responsible for finding and assessing any life forms on Darwin IV. Initially, the expectation is to find microscopic life, but the probes soon find themselves in the middle of a developed ecosystem teeming with diversity of life of all sizes. 


The drama on Darwin IV is motivated by real science missions, such as the NASA Origins Program and the NASA / JPL Planet-Finder Mission, as well as the European Space Agency's Darwin Project. 


"Alien Planet" is a cosmic expedition along side Stephen Hawking, Michio Kaku, Jack Horner, Craig Venter, and George Lucas...

Wednesday, August 01, 2012

View From The ISS At Night



By Knate Myers


Every frame in this video is a photograph taken from the International Space Station. All credit goes to the crews on board the ISS.

I removed noise and edited some shots in photoshop. Compiled and arranged in Sony Vegas.

Music by John Murphy - Sunshine (Adagio In D Minor)
itunes.apple.com/us/album/sunshine-music-from-motion/id297702863


Image Courtesy of the Image Science & Analysis Laboratory,
NASA Johnson Space Center, The Gateway to Astronaut Photography of Earth

eol.jsc.nasa.gov

Thursday, July 19, 2012

7 Minutes Of Terror




Experts at NASA's Jet Propulsion Laboratory share the challenges of Curiosity's rover final minutes to landing on the surface of Mars on the 5th of August,2012 . 

NASA official site:
http://www.nasa.gov/mission_pages/msl/index.html


NASA video (Curiosity 7 minutes of terror ) is used for informational purposes by complying with the guidelines below:

http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html


Note: Curiosity is a Mars rover launched by NASA on November 26, 2011.

Currently en route to the planet, it is scheduled to land in Gale Crater on August 5, 2012. The rover's objectives include searching for past or present life, studying the Martian climate, studying Martian geology, and collecting data for a future manned mission to Mars