Galileo Galilei discovered Jupiter's moon Europa in 1610. More than four centuries later, astronomers are still making discoveries about its icy surface.
In the darkness of the distant universe, these galaxies resemble glowing fireflies, flickering candles, charred embers floating up from a bonfire, and light bulbs softly shining.
The crew of the International Space Station snapped this image of the full moon on April 30, 2018, as the station orbited off the coast of Newfoundland, Canada.
InSight Mars Mission Lifts Off From Vandenberg Air Force Base
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The NASA InSight spacecraft launches onboard a United Launch Alliance Atlas-V rocket, Saturday, May 5, 2018, from Vandenberg Air Force Base in California. InSight, short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, is a M
The lone active region visible on our Sun put on a fine display with its tangled magnetic field lines swaying and twisting above it (Apr. 24-26, 2018) when viewed in a wavelength of extreme ultraviolet light.
«Guardian Angel» Pararescue specialists secure a covered life raft during an astronaut rescue training exercise. This exercise is part of preparation, with NASA's commercial partners Boeing and SpaceX, to fly astronauts to and from the Internation
NASA's InSight Mars mission will help scientists understand the processes that shaped the rocky planets of the inner solar system (including Earth) more than four billion years ago. InSight, the first planetary mission to take off from the West Coast, is targ
Far across the solar system, where Earth appears merely as a pale blue dot, NASA’s Galileo spacecraft spent eight years orbiting Jupiter. Newly resurrected data from Galileo's first flyby of Jupiter's moon Ganymede is yielding new insights.
NASA's Operation IceBridge successfully collected data over several glaciers, research sites, and some parallel coastal grid lines on April 26, 2018, as part of its Spring 2018 campaign.
This view from above the nation of Turkey looks out across the Aegean Sea, over Greece and onto the Ionian Sea where Sicily and the boot of Italy are barely visible. The sun's glint on the Mediterranean waters highlight the Greek islands while clouds cloak th
Celebrating National Park Week With a View of Mount Rainier
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NASA astronaut Ricky Arnold captured this clear view of Mount Rainier National Park as the International Space Station orbited above, sharing the image with his followers on April 25 to celebrate National Park Week.
As our nearest star, the Sun bathes Earth in a steady stream of energetic particles, magnetic fields and radiation that can stimulate our atmosphere and light up the night sky, like the aurora borealis, or northern lights.
Celebrating 28 Years of the Hubble Space Telescope
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This colorful image, taken by NASA’s Hubble Space Telescope, celebrates the Earth-orbiting observatory’s 28th anniversary of viewing the heavens, giving us a window seat to the universe’s extraordinary stellar tapestry of birth and destruction.
Sounding Rocket Launches CHESS Mission to Study the Matter Between Stars
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The Colorado High-resolution Echelle Stellar Spectrograph, or CHESS 4, was successfully launched on a NASA Black Brant IX sounding rocket at 12:47 p.m. EDT, April 16 (4:47 a.m. local, April 17) from the Kwajalein Atoll in The Republic of the Marshall Islands.
Astronauts aboard the International Space Station captured this photo while flying over the western United States. The wide field of view stretches from the Sierra Nevada of California to the Columbia Plateau of Oregon and the Snake River Valley of Idaho. Lak
NASA's TESS Mission Hopes to Find Exoplanets Beyond Our Solar System
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The worlds orbiting other stars are called “exoplanets,” and they come in a wide variety of sizes, from gas giants larger than Jupiter to small, rocky planets about as big around as Earth or Mars. This rocky super-Earth is an illustration of the type of p
From March 20-23, 2018, the Solar Dynamics Observatory captured a series of images of our Sun and then ran together three sequences in three different extreme ultraviolet wavelengths.
We Were There: 2018 USA Science and Engineering Festival
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Attendees talk with NASA staff at exhibit booths during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018. At the festival, NASA showcased the future of human space exploration – including the Orion spacecraft and the Spac
These graceful arcs are a cosmic phenomenon known as an Einstein ring - created as the light from distant galaxies warps around an extremely large mass, like a galaxy cluster.
We honor the legacy of Dr. Martin Luther King Jr., who delivered the famous «I've been to the mountaintop» speech in Memphis, Tennessee fifty years ago, the day before he was assassinated on April 4, 1968. This image taken from the International S
Aeronautical innovations are part of a government-industry partnership to collect data that could make supersonic flight over land possible, dramatically reducing travel time in the United States.
Before there were computers and software that could stitch together digital images, they were printed on photo paper, trimmed by hand, and taped in place on a large black board.
Inside the Astrotech processing facility at Vandenberg Air Force Base, NASA's Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, or InSight, Mars lander is tested ahead of its scheduled launch on May 5, 2018.
TESS, the Transiting Exoplanet Survey Satellite, is the next step in the search for planets outside of our solar system, including those that could support life.
Claudia Alexander, the project scientist overseeing NASA's support role in the European Space Agency's Rosetta mission, stands on the view deck of mission control at the Jet Propulsion Laboratory.
The Soyuz MS-08 rocket is launched with Soyuz Commander Oleg Artemyev of Roscosmos and astronauts Ricky Arnold and Drew Feustel of NASA, March 21, 2018, to join the crew of the Space Station.
Workers are seen on the launch pad as the Soyuz rocket arrives after being rolled out by train, Monday, March 19, 2018 at the Baikonur Cosmodrome in Kazakhstan.
