NASA Goddard
yesterday at 20:50. Facebook
NASA’s Fermi telescope has detected a gamma-ray excess at the center of the Andromeda galaxy that's similar to a signature Fermi previously detected at the center of our own Milky Way.

Watch to learn more...

Fermi Detects Gamma Ray Puzzle from M31

NASA's Fermi Gamma-ray Space Telescope has found a signal at the center of the neighboring Andromeda galaxy that could indicate the presence of the mysteriou...

YOUTUBE.COM
NASA Goddard
yesterday at 17:00. Facebook
Fires in Southeast United States Both Wild and Prescribed

Fires both wild and prescribed dot the landscape of the southeastern portion of the United States. Wildfires are those that occur naturally with lightning strikes or are set by careless humans. Prescribed fires are those deliberately set by land management authorities to take out underlying brush and dead grass so that in the event...
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NASA Goddard
yesterday at 16:34. Facebook
NASA’s SnowEx Challenges the Sensing Techniques…‘Until They Break’

A NASA-led team will kick off an ambitious airborne campaign to determine which combination of sensors would work best at collecting global snow-water measurements from space — critical for understanding and managing the world’s freshwater resources. Scientists at NASA's Goddard Space Flight Center in Greenbelt, Maryland are...
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NASA Goddard
yesterday at 16:33. Facebook
NASA’s SnowEx Challenges the Sensing Techniques…‘Until They Break’

A NASA-led team will kick off an ambitious airborne campaign to determine which combination of sensors would work best at collecting global snow-water measurements from space — critical for understanding and managing the world’s freshwater resources. Scientists at NASA's Goddard Space Flight Center in Greenbelt, Maryland are...
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NASA Goddard
yesterday at 15:29. Facebook
#ICYMI - congratulations to SpaceX and to NASA's Satellite Servicing Projects Division on a successful launch carrying Raven to the International Space Station.
NASA Goddard
02/19/2017 at 19:19. Facebook
NASA Launches Rocket Into Active Auroras

A test rocket is launched the night of Feb. 17 from the Poker Flat Research Range in Alaska. Test rockets are launched as part of the countdown to test out the radar tracking systems. NASA is launching five sounding rockets from the Poker Range into active auroras to explore the Earth's magnetic environment and its impact on Earth’s upper atmosphere...
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NASA Goddard
02/19/2017 at 17:22. Facebook
Our Satellite Servicing mission launched to the Space Station today! Jolyn Russell explains how #Raven is a step toward servicing satellite!
[ Go.nasa.gov Link ]
NASA's Satellite Servicing Projects Division
NASA Goddard
02/18/2017 at 21:58. Facebook
Atmospheric scientist Jack Dibb of the University of New Hampshire sent a video postcard from the Hawaii leg of the Atmospheric Tomography or ATom mission. On its second worldwide tour, the ATom team flew into Kona, Hawaii, to study small particles like sulfate and nitrate in the atmosphere. Volcanoes like Kilauea, in Hawaii, constantly release sulfate particles, which can oxidize to make...
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NASA Goddard
02/18/2017 at 17:50. Facebook
Twice a year, NASA’s Solar Dynamics Observatory, or SDO, has an eclipse season — a weeks-long period in which Earth blocks SDO’s view of the sun for part of each day. This footage captured by SDO on Feb. 15, 2017, shows one such eclipse. Earth’s edge appears fuzzy, rather than crisp, because the sun’s light is able to shine through Earth’s atmosphere in some places. These images were captured...
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NASA Goddard
02/18/2017 at 17:11. Facebook
This image was captured by the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys (ACS), a highly efficient wide-field camera covering the optical and near-infrared parts of the spectrum. While this lovely image contains hundreds of distant stars and galaxies, one vital thing is missing — the object Hubble was actually studying at the time!

This is not because the target has...
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NASA Goddard
02/18/2017 at 15:43. Facebook
Getting Flake-y: Why All Snowflakes Have Six Sides Learn more: [ Snow.nasa.gov Link ], @NASA_Rain
NASA Goddard
02/17/2017 at 22:02. Facebook
NASA Goddard
02/17/2017 at 20:44. Facebook
This colorized infrared image shows the two storm systems currently affecting the West Coast. Taken by NOAA Satellite and Information Service GOES-West satellite on Feb. 17 at 7 am EST - learn more: [ Go.nasa.gov Link ]
NASA Goddard
02/17/2017 at 20:19. Facebook
Twice a year, NASA’s Solar Dynamics Observatory, or SDO, has an eclipse season — a weeks-long period in which Earth blocks SDO’s view of the sun for part of each day. This footage captured by SDO on Feb. 15, 2017, shows one such eclipse. Earth’s edge appears fuzzy, rather than crisp, because the sun’s light is able to shine through Earth’s atmosphere in some places. These images were captured...
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NASA Goddard
02/17/2017 at 19:23. Facebook
Find out how and why NASA scientists are studying snow today LIVE 5 pm ET NASA Earth #SnowEx
NASA Goddard
02/17/2017 at 16:43. Facebook
6 Things You Didn't Know About Snow

Thanks to a half-century of snow observations, NASA scientists have learned a number of amazing facts about snow, which are crucial to understanding what’s necessary to advance snow measurements.

Scientists are in the field right now, testing advanced technologies to measure snow like never before. In a five-year study called SnowEx, researchers are...
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NASA Goddard
02/16/2017 at 17:34. Facebook
This February, a NASA-led research campaign called #SnowEx kicked off in Colorado. The 5-year study will advance global measurements of how much snow is on the ground at any given time and how much liquid water is contained in that snow. The amount of water in snow plays a huge role in water availability for drinking water, agriculture, and hydropower.

Teams of 50 researchers are stationed at...
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NASA Goddard
02/16/2017 at 14:09. Facebook
Nighttime launches will probe the northern lights, and you're welcome to watch along with us.

Sounding rockets carrying instrumented payloads for the Neutral Jets in Auroral Arcs mission are seen being elevated on their launch rails at Poker Flat Research Range located north of Fairbanks, Alaska, Feb. 14. The rockets are boxed in insulation to protect them from the frigid Alaskan...
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NASA Goddard
02/16/2017 at 02:01. Facebook
NASA's balloon program returns to Wanaka, New Zealand: testing the endurance of heavy-lift super pressure balloons to maintain a steady altitude despite day-night heating and cooling cycles.

After launch, planned for late March/early April, the 18.8-million-cubic-foot (532,000 cubic-meter) SPB will ascend to an altitude of 110,000 feet (33.5 km) where the stratospheric winds will propel it...
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NASA Goddard
02/15/2017 at 23:00. Facebook
There's a whole lot of shaking going on.

At Goddard Space Flight Center, we're good at pushing space technology to the limits to ensure it won't break during a launch. Because of the sheer size and scale of the assembled Webb telescope, some of the equipment typically used to test spacecraft simply doesn’t measure up. One of those is a "shaker table" that is used to shake satellites to...
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