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Fifteen Years of Our Chandra X-ray Observatory: This Chandra image of the Hydra A galaxy cluster was taken on Oct. 30, 1999. Hydra A is a galaxy cluster that is 840 million light years from Earth. The cluster gets its name from the strong radio source, Hydra A, that originates in a galaxy near the center of the cluster. Optical observations show a few hundred galaxies in the cluster. Chandra X-ray observations reveal a large cloud of hot gas that extends throughout the cluster. The gas cloud is several million light years across and has a temperature of about 40 million degrees in the outer parts decreasing to about 35 million degrees in the inner region. Image Credit: NASA/CXC/SAO #nasa #space #chandra #xray #astronomy #telescope #science 995D607D-D148-4D85-94CD-795EC1BF329B; -
Sunrise from the International Space Station: NASA astronaut Reid Wiseman posted this image of a sunrise, captured from the International Space Station, to social media on Oct. 29, 2014. Wiseman wrote, "Not every day is easy. Today was a tough one." Wiseman was referring to the loss on Oct. 28 of the Orbital Sciences Corporation Antares rocket and Cygnus spacecraft, moments after launch at NASA's Wallops Flight Facility in Virginia. The Cygnus spacecraft was filled with about 5,000 pounds of supplies slated for the International Space Station, including science experiments, experiment hardware, spare parts, and crew provisions. The station crew is in no danger of running out of food or other critical supplies. Image Credit: NASA/Reid Wiseman #nasa #space #spacestation #iss #isscargo #orbital #cygnus #orbitalsciences #antares #bluedot #earth; -
Spooky Shadow Gives Jupiter a Giant Eye: This trick that the planet is looking back at you is actually a Hubble treat: An eerie, close-up view of Jupiter, the biggest planet in our solar system. Hubble was monitoring changes in Jupiter's immense Great Red Spot (GRS) storm on April 21, 2014, when the shadow of the Jovian moon, Ganymede, swept across the center of the storm. This gave the giant planet the uncanny appearance of having a pupil in the center of a 10,000 mile-diameter "eye." For a moment, Jupiter "stared" back at Hubble like a one-eyed giant Cyclops. Image Credit: NASA/ESA/A. Simon (Goddard Space Flight Center) #nasa #halloween #space #hst #hubble #jupiter #moon #planets #solarsystem #science; -
One giant sunspot, 6 substantial flares. The bright light in the lower right of the sun shows an X-class solar flare on Sunday, as captured by NASA Solar Dynamics Observatory, which watches the sun constantly, captured images of the event. This was the third X-class flare in 48 hours, which erupted from the largest active region seen on the sun in 24 years. Solar flares are powerful bursts of radiation. They can't physically affect humans on the ground, but -- when intense enough -- can disturb the atmosphere where GPS and communications signals travel. Image Credit: NASA/SDO #nasa #sun #solarflare #flare #earth #sdo #solarsystem #sunspot #spaceweather #science; -
'Twas the night before launch: The Orbital Sciences Corporation Antares rocket, with the Cygnus spacecraft onboard, is seen on launch Pad-0A, Sunday night, Oct. 26, 2014, at NASA's Wallops Flight Facility in Virginia. The Antares will launch with the Cygnus spacecraft filled with over 5,000 pounds of supplies for the International Space Station, including science experiments, experiment hardware, spare parts, and crew provisions. The Orbital-3 mission is Orbital Sciences' third contracted cargo delivery flight to the space station for NASA. Launch is scheduled for Monday, Oct. 27 at 6:45 p.m. EDT. Photo Credit: NASA/Joel Kowsky #orbital #orbitalsciences #iss @iss #spacestation #isscargo #antares #orb3 #nasa #space #rocket #rocketlaunch;
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At a Launch Readiness Review Sunday, managers for Orbital Sciences Corp. of Dulles, Virginia, and NASA gave a 'go' to proceed toward the Monday, Oct. 27 launch of the Orbital CRS-3 cargo resupply mission to the International Space Station. Orbital is targeting a 6:45 p.m. EDT launch from the Mid-Atlantic Regional Spaceport Pad 0A at NASA's Wallops Flight Facility in Virginia. NASA Television coverage of the launch will begin at 5:45 p.m. on Monday. There is a 98% chance of favorable weather at the time of launch. On Sunday afternoon, NASA TV will broadcast two news briefings from the Wallops Visitors Center. A prelaunch status briefing will be held at 1 p.m. EDT followed by a preview of the mission's science cargo at 2 p.m. EDT. The briefings will be carried live on NASA TV and the agency's website at http://www.nasa.gov/ntv. Seen here is the Orbital Sciences Corporation Antares rocket, with the Cygnus spacecraft onboard, during sunrise, Sunday, Oct. 26, 2014, at NASA's Wallops Flight Facility in Virginia. Photo Credit: NASA/Joel Kowsky; -
Orbital Sciences' #Antares rocket, with the Cygnus spacecraft onboard, is seen on launch Pad-0A during sunrise, Sunday, Oct. 26, 2014, at NASA's Wallops Flight Facility in Virginia. The Antares will launch with the Cygnus spacecraft filled with over 5,000 pounds of supplies for the International Space Station, including science experiments, experiment hardware, spare parts, and crew provisions. The Orbital-3 mission is Orbital Sciences' third contracted cargo delivery flight to the space station for NASA. Launch is scheduled for Monday, Oct. 27 at 6:45 p.m. EDT. Photo Credit: NASA/Joel Kowsky #orbital #orbitalsciences #iss @iss #spacestation #isscargo #antares #orb3 #nasa #space #rocket #sunrise #sun #rocketlaunch; -
Whirling Disk: This neat little galaxy is known as NGC 4526. Its dark lanes of dust and bright diffuse glow make the galaxy appear to hang like a halo in the emptiness of space in this image from the our Hubble Space Telescope. Although this image paints a picture of serenity, the galaxy is anything but. It is one of the brightest lenticular galaxies known, a category that lies somewhere between spirals and ellipticals. It has hosted two known supernova explosions, one in 1969 and another in 1994, and is known to have a colossal supermassive black hole at its center that has the mass of 450 million suns. Photo Credit: ESA/Hubble & NASA, Acknowledgement: Judy Schmidt #nasa #hst #hubble #space #astronomy #blackhole #supernova #galaxy #telescope #science; -
Mini Moons: Are the moons tiny or are the rings vast? Both, in a way! The moons visible in this image, Pandora and Atlas, are quite small by astronomical standards, but the rings are also enormous. From one side of the planet to the other, the A ring stretches over 170,000 miles (270,000 km), dwarfing these small moons of Saturn. For details, visit: http://go.nasa.gov/1wvngob Credit: NASA/JPL-Caltech/Space Science Institute #nasa #space #cassini #saturn #moons #pandora #atlas #astronomy #planets #science; -
Our Aqua Satellite Sees Partial Solar Eclipse Effect in Western Canada: This image shows how a partial solar eclipse darkened clouds over the Yukon and British Columbia in western Canada. It was taken on Oct. 23 at 21:20 UTC (5:20 p.m. EDT) by the Moderate Resolution Imaging Spectroradiometer instrument that flies aboard our Aqua satellite. Credit: NASA Goddard MODIS Rapid Response Team #nasa #aqua #satellite #space #eclipse #solareclipse #canada #britishcolumbia #science;
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Hinode Spacecraft Captures Images of Partial Solar Eclipse: A partial solar eclipse was visible from much of North America before sundown on Thursday, Oct.23. A partial eclipse occurs when the moon blocks a portion of the sun from view. As viewed from Hinode's vantage point in space, this eclipse was annular instead of partial, which means that the entire moon moved in front of the sun but did not cover it completely. In this situation, a ring of the sun encircles the dark disk of the moon. The Hinode spacecraft captured images the eclipse as it passed over North America using its X-ray Telescope. During the eclipse, the new moon eased across the sun from right to left with the sun shining brilliantly in the background. And as a stroke of good luck, this solar cycle's largest active region, which has been the source of several large flares over the past week, was centered on the sun's disk as the moon transited! Led by the Japan Aerospace Exploration Agency (JAXA), the Hinode mission is a collaboration between the space agencies of Japan, the United States, the United Kingdom and Europe. Image Credit: NASA #nasa #sun #solareclipse #eclipse #space #hinode #spacecraft #moon #science; -
Ice Cloud Above Cruising Altitude on Titan: Our scientists have identified an unexpected high-altitude methane ice cloud on Saturn's moon Titan that is similar to exotic clouds found far above Earth's poles. This lofty cloud, imaged by NASA's Cassini spacecraft, was part of the winter cap of condensation over Titan's north pole. Now, eight years after spotting this mysterious bit of atmospheric fluff, researchers have determined that it contains methane ice, which produces a much denser cloud than the ethane ice previously identified there. This cloud in the stratosphere over Titan's north pole is similar to Earth's polar stratospheric clouds. Our scientists found that Titan's cloud contains methane ice, which was not previously thought to form in that part of the atmosphere. Our Cassini spacecraft first spotted the cloud in 2006. Image Credit: L. NASA/JPL/U. of Ariz./LPGNantes; R. NASA/GSFC/M. Schoeberl #nasa #cassini #titan #saturn #space #planets #moon #ice #methane #northpole #clouds #earth #science C14FCED8-6BB0-4353-90D4-AE9930EC6388; -
Close Encounters: Comet Siding Spring Seen Next to Mars: This composite Hubble Space Telescope Image captures the positions of comet Siding Spring and Mars in a never-before-seen close passage of a comet by the Red Planet, which happened at 2:28 p.m. EDT Oct. 19, 2014. At that time, the comet and Mars were about 149 million miles from Earth. The Mars and comet images have been added together to create a single picture to illustrate the angular separation, or distance, between the comet and Mars at closest approach. The separation is approximately 1.5 arc minutes, or one-twentieth of the angular diameter of the full moon. The background star field in this composite image is synthesized from ground-based telescope data provided by the Palomar Digital Sky Survey, which has been reprocessed to approximate Hubble's resolution. Image Credit: NASA, ESA, PSI, JHU/APL, STScI/AURA #nasa #space #hst #hubble #sidingspring #marscomet #mars #comet #telescope #planets #science A08B1413-5F08-4FF2-8AF3-3C0748E0F7DC; -
Don't Stare! How to Safely Watch Today's Partial Solar Eclipse: During the late afternoon today, a partial solar eclipse will be visible from much of North America before sundown. Partial eclipses occur when the moon blocks part of the sun from view. However, it is NEVER safe to look at the sun with the naked eye. A partial solar eclipse occurs when the moon obscures only part of the sun from Earth's view. Image Credit: T. Ruen #eclipse #solareclipse #nasa #sun #moon #science; -
Throwback Thursday: Antares on the Fra Mauro Highlands A front view of the Apollo 14 Lunar Module "Antares", which reflects a circular flare caused by the brilliant sun. The unusual ball of light was said by the astronauts to have a jewel-like appearance. At extreme left, the lower slope of Cone Crater can be seen. Image Credit: NASA #TBT #NASA #History #MoonLanding #Apollo14 #ThrowbackThursday;
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