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Some beauty is revealed only at a second glance. When viewed with the human eye, the giant asteroid Vesta, which was the object of scrutiny by the Dawn spacecraft from 2011 to 2012, is quite unspectacular color-wise. Vesta looks grayish, pitted by a variety of large and small craters. But scientists at the Max Planck Institute for Solar System Research in Katlenburg-Lindau, Germany, have re-analyzed the images of this giant asteroid obtained by Dawn's framing camera. They assigned colors to different wavelengths of light and, in the process, revealed in unprecedented detail not only geological structures that are invisible to the naked eye, but also landscapes of incomparable beauty. Dawn visited Vesta from July 2011 to September 2012. The spacecraft is currently on its way to its second destination, the dwarf planet Ceres. Ceres is the largest object in the main asteroid belt between Mars and Jupiter. This colorful composite image shows the flow of material inside and outside a crater called Aelia on asteroid Vesta. Image Credit: NASA/JPL-Caltech/UCLAMPS/DLR/IDA #nasa #dawn #vesta #space #asteroid #spacecraft #solarsystem #science #color; -
A Rainbow of Wavelengths - This still image is based on data from NASA's Solar Dynamics Observatory, or SDO, showing the wide range of the sun’s wavelengths – invisible to the naked eye – that the telescope can view. SDO converts the wavelengths into an image humans can see, and the light is colorized into a rainbow of colors. Yellow light of 5800 Angstroms, for example, generally emanates from material of about 10,000 degrees F (5700 degrees C), which represents the surface of the sun. Extreme ultraviolet light of 94 Angstroms, which is typically colorized in green in SDO images, comes from atoms that are about 11 million degrees F (6,300,000 degrees C) and is a good wavelength for looking at solar flares, which can reach such high temperatures. By examining pictures of the sun in a variety of wavelengths scientists can track how particles and heat move through the sun's atmosphere. Image Credit: NASA Goddard Space Flight Center #solar #sdo #nasa #space #sunpix #sun; -
Pfeiffer Fire near Big Sur, California - The MODIS or Moderate Resolution Imaging Spectroradiometer instrument that flies aboard NASA's Aqua satellite captured an image of smoke and detected the heat from the Pfeiffer Fire near Big Sur, Calif., on Dec. 16 at 21:05 UTC/4:05 p.m. EST. The red outlined area represents the heat from the fire. According to Reuters News, the fire has destroyed at least 15 homes and caused many residential evacuations. The Incident Information System called Inciweb, the U.S. multi-agency firefighting website, reported that the wildfire started around midnight Pacific Standard local time on Dec. 16 in the vicinity of Pfeiffer Ridge in the Monterey Ranger District of Los Padres National Forest. It is in an area of rugged terrain and has already consumed over 500 acres. As of Dec. 17, the fire was zero percent contained. Image: NASA Goddard MODIS Rapid Response Team, Caption: NASA Goddard, Rob Gutro #nasa #space #weather #modis #bigsur #aqua #satellite #climate #wildfire #fire; -
Just in time for the holidays, a festive Hubble Space Telescope image that resembles a holiday wreath made of sparkling lights! The bright southern hemisphere star RS Puppis, at the center of the image, is swaddled in a gossamer cocoon of reflective dust illuminated by the glittering star. The super star is ten times more massive than our sun and 200 times larger. RS Puppis rhythmically brightens and dims over a six-week cycle. It is one of the most luminous in the class of so-called Cepheid variable stars. Its average intrinsic brightness is 15,000 times greater than our sun’s luminosity. The nebula flickers in brightness as pulses of light from the Cepheid propagate outwards. Hubble took a series of photos of light flashes rippling across the nebula in a phenomenon known as a "light echo." Even though light travels through space fast enough to span the gap between Earth and the moon in a little over a second, the nebula is so large that reflected light can actually be photographed traversing the nebula. Image Credit: NASA/ESA/Hubble Heritage (STScI/AURA)-Hubble/Europe Collab. #nasa #space #hubble #galaxy #hst #universe #esa #nebula #earth #light #science #astronomy; -
An Orbital Science Corporation Antares rocket is seen as it is rolled out to launch Pad-0A at NASA's Wallops Flight Facility Tuesday, Dec. 16, 2013, in advance of a Thursday launch, Wallops Island, VA. The Antares will launch a Cygnus spacecraft on a cargo resupply mission to the International Space Station. The Orbital-1 mission is Orbital Sciences' first contracted cargo delivery flight to the space station for NASA. Among the cargo aboard Cygnus set to launch to the space station are science experiments, crew provisions, spare parts and other hardware. Launch is scheduled for 9:19 p.m. EST on Thursday, Dec. 19. Weather permitting, it may be widely visible along the east coast of the United States. Photo Credit: (NASA/Bill Ingalls) #nasa #space #launch #rocketlaunch #iss #orbitalsciences #cygnus #orb1 #antares;
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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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