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NASA's Hubble Looks at a Members-only Galaxy Club - This new Hubble image shows galaxies in the constellation of Eridanus (The River). NGC 1190 stands apart from the rest; it belongs to an exclusive club known as Hickson Compact Group 22 (HCG 22). Hickson Compact Groups are incredibly tightly bound groups of galaxies. Their discoverer Paul Hickson observed only 100 of these objects, which he described in his HCG catalog in the 1980s. To earn the Hickson Compact Group label, there must be at least four members — each one fairly bright and compact. These short-lived groups are thought to end their lives as giant elliptical galaxies, but despite knowing much about their form and destiny, the role of compact galaxy groups in galactic formation and evolution is still unclear. These groups are interesting partly for their self-destructive tendencies. The group members interact, circling and pulling at one another until they eventually merge together, signaling the death of the group, and the birth of a large galaxy. CREDIT: European Space Agency #nasa #hubble #space #astronomy #galaxy #stars #milkyway #hst #universe; -
Spotlight on Webb Telescope Test - Dressed in a clean room suit, NASA photographer Desiree Stover shines a light on the Space Environment Simulator's Integration Frame inside the thermal vacuum chamber at NASA's Goddard Space Flight Center in Greenbelt, Md. Shortly after, the chamber was closed up and engineers used this frame to enclose and help cryogenic (cold) test the heart of the James Webb Space Telescope, the Integrated Science Instrument Module. The James Webb Space Telescope (sometimes called JWST) is a large, infrared-optimized space telescope. The project is working to a 2018 launch date. Webb will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way Galaxy. Webb will peer through dusty clouds to see stars forming planetary systems, connecting the Milky Way to our own Solar System. Webb's instruments will be designed to work primarily in the infrared range of the electromagnetic spectrum, with some capability in the visible range. CREDIT: NASA #nasa #space #webbtelescope #infrared #jwst #universe #telescope #galaxy #planets; -
Backdropped by Earth’s horizon and the blackness of space, the International Space Station is featured in this image photographed by an STS-131 crew member on space shuttle Discovery after the station and shuttle began their post-undocking relative separation. Undocking of the two spacecraft occurred at 8:52 a.m. (EDT) on April 17, 2010. The station’s Expedition 38 mission began Nov. 11, 2013, and will end March 12, 2014. This expedition includes research projects focusing on technology demonstration, cellular and plant biology, human health management for long duration space travel and maturing critical systems that currently support the station. CREDIT: NASA #nasa #iss #space #astronauts #exploration #station #earth #spaceshuttle #discovery; -
We are currently reviewing possible repair spacewalks aboard the International Space Station. NASA engineers continued efforts Sunday to regulate temperatures in one of two cooling loops on the space station affected by the malfunction last week of a flow control valve in a cooling pump on the station’s starboard truss. A Flow Control Valve in the starboard Pump Module that enables the flow of ammonia to cool station systems stopped positioning itself properly last Wednesday, resulting in a drop of temperature in Cooling Loop A. That necessitated the shutdown of some support systems on the station. The temperature must be warm enough in the cooling lines to allow the system’s heat exchangers to dissipate excess heat from the station through the external radiators on the complex. The primary heat rejection capability for station systems shifted last week to Cooling Loop B that uses a fully operational Pump Module on the port truss. Meanwhile, aboard the space station, astronauts Rick Mastracchio and Mike Hopkins continued to prepare their spacesuits and other equipment in the Quest airlock Sunday should they be called upon to conduct spacewalks to replace the Pump Module. In this image, Flight Engineer Doug Wheelock worked outside the International Space Station in August 2010 to install a spare pump module. CREDIT: NASA #nasa #space #iss #spacewalk #cygnus #orb1 #antares #exploration #repair #eva #exp38 #astronauts; -
Crab Nebula - This image shows a composite view of the Crab nebula, an iconic supernova remnant in our Milky Way galaxy, as viewed by the Herschel Space Observatory and the Hubble Space Telescope. Herschel is a European Space Agency (ESA) mission with important NASA contributions, and Hubble is a NASA mission with important ESA contributions. The image combines Hubble's view of the nebula at visible wavelengths, obtained using three different filters sensitive to the emission from oxygen and sulphur ions and is shown here in blue. Herschel's far-infrared image reveals the emission from dust in the nebula and is shown here in red. While studying the dust content of the Crab nebula with Herschel, a team of astronomers have detected emission lines from argon hydride, a molecular ion containing the noble gas argon. This is the first detection of a noble-gas based compound in space. Image credit: ESA/Herschel/PACS/MESS Key Programme Supernova Remnant Team; NASA, ESA and Allison Loll/Jeff Hester (Arizona State University) #nasa #space #hubble #galaxy #nebula #milkyway #herschel #astronomy #esa #science;
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The annual Geminid meteor shower will peak on the night of Dec. 13-14, 2013. This is a composite, false-color image that combines meteor fall from various meteor showers (Orionids, Perseids, Geminids) from 2009-2011. All images are based on grey-scale images provided by the Meteoroid Environment Office at NASA's Marshall Space Flight Center in Huntsville, Ala. The Geminid meteor shower is the most intense meteor shower of the year. It lasts for several days (Dec. 12-16), is rich in fireballs and can be seen from almost any point on Earth. The 2013 peak rate is between 100-120 meteors per hour. The waxing gibbous moon will reduce the rate by half, except for the brief time between moonset (4 a.m. local time) and sunrise. CREDIT: NASA #nasa #space #meteor #sky #geminid #fireball #earth #science; -
#AGU13 - What is the impact of Earth's seven plus billion people on biodiversity? It's a complex puzzle, as biodiversity continuously shapes the planet's land and oceans. Allison Leidner of NASA Headquarters demonstrated how space based observations reveal Earth as a system, presenting at NASA's Hyperwall this week at the fall meeting of the American Geophysical Union (AGU) in San Francisco. In addition to coordinating activities in NASA's biodiversity program, Leidner helps coordinate NASA's involvement in the National Climate Assessment. "I'm here at AGU for both of those reasons, because AGU is a really important conference for understanding the latest advances in climate change science, and also understanding the impacts and how we assess those changes to help inform our decisions," Leidner said. The annual fall meeting of the AGU is a chance for more than 22,000 scientists, educators, and students to present their research, broaden their knowledge base and embrace the excitement of science. In these 15-second videos, scientists talk about the NASA science projects they are presented at the conference that you may not have seen. #nasa #biodiversity #earth #agu #video #science #weather #climate #hyperwall #oceans; -
#AGU13 -This is not Yellowstone National Park, or anywhere on Earth for that matter – these plumes erupt from the frigid, icy surface of the Jovian moon Europa. Observations from NASA’s Hubble Space Telescope provide the first strong evidence of water vapor plumes ejected off the moon's surface. Michelle Thaller of NASA's Goddard Space Flight Center in Greenbelt, Md., described the study, and other new findings from planetary science, to a sizeable crowd gathered around NASA's Hyperwall at the fall meeting of the American Geophysical Union (AGU) in San Francisco. Lorenz Roth of Southwest Research Institute in San Antonio lead the plume research, which was published Dec. 12 in the online issue of Science Express and presented at an AGU media briefing. The annual fall meeting of the AGU is a chance for more than 22,000 scientists, educators, and students to present their research, broaden their knowledge base and embrace the excitement of science. In these 15-second videos, scientists talk about the NASA science projects they are presented at the conference that you may not have seen. #nasa #moon #earth #agu #video #science #jupiter #climate #europa #jovian #hubble #hyperwall #planets #solarsystem; -
#AGU13 - Scientist flew hot on the heels of the NASA's DC-8 aircraft earlier this year, with instruments to sniff out how aircraft emissions from petroleum fuels differ from those of biofuels. What is the impact of near-ground emissions on pollution, or higher-altitude emissions on climate? Richard Moore, a post-doctoral fellow at NASA's Langley Research Center in Hampton, Va., described early results of the Alternative Fuel Effects on Contrails and Cruise Emissions (ACCESS) experiment, in a poster presented this week at the fall meeting of the American Geophysical Union in San Francisco. The annual fall meeting of the AGU is a chance for more than 22,000 scientists, educators, and students to present their research, broaden their knowledge base and embrace the excitement of science. In these 15-second videos, scientists talk about the NASA science projects they are presented at the conference that you may not have seen. #nasa #aircraft #earth #agu #video #science #weather #climate #biofuels #pollution #emissions; -
#AGU13 - Deep in the swamplands of southern Louisiana, a sinkhole gobbled up an entire 25 acres over the span of about one year and caused the evacuation of a nearby town. While disasters like this might come as a shock to the alligators in the marsh, events like this are becoming possible to forecast, according to Cathleen Jones of NASA's Jet Propulsion Laboratory in Pasadena, Calif. Jones uses data from radar instruments on NASA aircraft, flown repeatedly over a site, to detect change in land surfaces. She was surprised to find that the technique can even detect some sinkholes before they collapse, and described the specifics of her findings this week at the fall meeting of the American Geophysical Union (AGU) in San Francisco. The annual fall meeting of the AGU is a chance for more than 22,000 scientists, educators, and students to present their research, broaden their knowledge base and embrace the excitement of science. In these 15-second videos, scientists talk about the NASA science projects they are presented at the conference that you may not have seen. #nasa #aircraft #earth #agu #video #science #weather #climate #sinkhole;
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#AGU13 - Record drought plagues farmers in the Coquimbo region of Chile. Research by Joshua Kelly of NASA's Langley Research Center in Hampton, Va., and his colleagues show how satellite observations could help ease the strain on already limited water resources in the arid region. Two instruments on NASA's Terra satellite provide a better view of how much water farmers and resource managers can expect as snow melts off the surrounding Andes Mountains and flows down the region’s rivers. Kelly explained the potential in an informal talk this week at the fall meeting of the American Geophysical Union (AGU) in San Francisco. With improved forecasts of water availability, water managers could make decisions to lessen the effects of the drought, which otherwise could devastate the region’s agriculture and economy. The annual fall meeting of the AGU is a chance for more than 22,000 scientists, educators, and students to present their research, broaden their knowledge base and embrace the excitement of science. In these 15-second videos, scientists talk about the NASA science projects they are presented at the conference that you may not have seen. #nasa #space #earth #agu #video #science #snow #weather #climate #satellite #nasaterra; -
#AGU13 video - The Antarctic Peninsula is one of the fastest warming parts of the planet. There, ice shelves jut out from glaciers and into the sea, but the situation can change rapidly. In 1995 and 2002, for example, giant sections of the Larsen Ice Shelf disintegrated. When these remnants of glaciers and ice sheets float off and begin to melt, it can have implications for sea level rise. So Ted Scambos, lead scientist at the National Snow and Ice Data Center in Boulder, Colo., and other scientists keep close watch on the region, using ground-based instruments and satellites. This week at the fall meeting of the American Geophysical Union in San Francisco, Scambos presented a new look at the changes that occur before an ice shelf breaks apart. The research provides insight on the earliest instigators of ice shelf change. The annual fall meeting of the AGU is a chance for more than 22,000 scientists, educators, and students to present their research, broaden their knowledge base and embrace the excitement of science. In these 15-second videos, scientists talk about the NASA science projects they are presented at the conference that you may not have seen. #nasa #space #earth #agu #video #science #ice #weather @climate #antarctic; -
CATS in space? That will soon be the case – but no need for concern about allergic astronauts or litter boxes in zero gravity. This summer, the Cloud-Aerosol Transport System (CATS) instrument is slated to be among the first NASA instruments to use the International Space Station as a platform to send back Earth observations in near real time, all of the time. Once in space, CATS will use a laser to obtain information about the climate impacts of clouds and aerosols on a global scale. Matthew McGill, of NASA's Goddard Space Flight Center in Greenbelt, Md., is principal investigator of CATS and spoke about the instrument this week at the fall meeting of the American Geophysical Union (AGU) in San Francisco. The annual fall meeting of the AGU is a chance for more than 22,000 scientists, educators, and students to present their research, broaden their knowledge base and embrace the excitement of science. In these 15-second videos, scientists talk about the NASA science projects they are presented at the conference that you may not have seen. #nasa #space #earth #agu #agu13 #video #science; -
Astronaut Rick Mastracchio (@AstroRM) tweeted this image on Dec. 12 from the #ISS and wrote, “Volcano in Central America. The white lines that look like clouds are airplane contrails.” Rick is taking photos from the orbiting outpost some 240 miles up circling the Earth every 90 minutes. The International Space Station (ISS) continues the NASA tradition of Earth observation from human-tended spacecraft. Operational since November 2000, the ISS is well suited for documenting Earth features and provides an excellent stage for observing most populated areas of the world. Images coming down from the International Space Station are processed on a daily basis and include over 1.2 million images through Nov. 1, 2013. Image credit: NASA #nasa #space #iss #astronauts #astropix #spacestation #earth #australia #terrain; -
Lakes on Titan! This colorized mosaic from NASA's Cassini mission shows the most complete view yet of Titan's northern land of lakes and seas. Saturn's moon Titan is the only world in our solar system other than Earth that has stable liquid on its surface. The liquid in Titan's lakes and seas is mostly methane and ethane. The data were obtained by Cassini's radar instrument from 2004 to 2013. In this projection, the north pole is at the center. The view extends down to 50 degrees north latitude. In this color scheme, liquids appear blue and black depending on the way the radar bounced off the surface. Land areas appear yellow to white. A haze was added to simulate the Titan atmosphere. The area above and to the left of the north pole is dotted with smaller lakes. Lakes in this area are about 30 miles (50 kilometers) across or less. For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov and http://www.nasa.gov/cassini. Image Credit: NASA/JPL-Caltech/ASI/USGS #nasa #space #moons #saturn #titan #science #discovery #mosaic #lakes #seas #planets #solarsystem;
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