Ganymede: A Moon Like No Other

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. via NASA https://ift.tt/2r9ZQcZ

Dividing Line

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. via NASA https://ift.tt/2HyjdHX

Greece and the Aegean and Ionian Seas

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 the island of Crete. via NASA https://ift.tt/2HQry97

Celebrating National Park Week With a View of Mount Rainier

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. via NASA https://ift.tt/2JsclrI

Behold the Northern Lights

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. via NASA https://ift.tt/2HTEPuZ

Gravity’s Rainbow

Saturn’s rings display their subtle colors in this view captured on Aug. 22, 2009, by NASA’s Cassini spacecraft. via NASA https://ift.tt/2vGDJ3t

The Galápagos Islands

"The Enchanted Islands of #Ecuador – the Galápagos," were photographed by NASA astronaut Ricky Arnold from aboard the International Space Station. via NASA https://ift.tt/2Hf4zB6

Celebrating 28 Years of the Hubble Space Telescope

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. via NASA https://ift.tt/2vopVdE

Sounding Rocket Launches CHESS Mission to Study the Matter Between Stars

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. via NASA https://ift.tt/2HG8gkj

Seasons of Snow Cover in the West

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. Lake Tahoe is nestled on the border of California and Nevada. via NASA https://ift.tt/2qCFhXg

NASA's TESS Mission Hopes to Find Exoplanets Beyond Our Solar System

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 planets future telescopes, like NASA's TESS, hope to find outside our solar system. via NASA https://ift.tt/2HAq6VW

The Aurora and the Sunrise

Auroras are one of the many Earthly phenomena the crew of the International Space Station observe from their perch high above the planet. via NASA https://ift.tt/2EEdzxh

Our Sun: Three Different Wavelengths

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. via NASA https://ift.tt/2Hbs8xK

We Were There: 2018 USA Science and Engineering Festival

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 Space Launch System rocket. via NASA https://ift.tt/2Hcq20R

Hubble Finds an Einstein Ring

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. via NASA https://ift.tt/2JrIFMa

Gullies of Matara Crater

Gullies on Martian sand dunes, like these in Matara Crater, have been very active, with many flows in the last ten years. via NASA https://ift.tt/2GDsf1J

Memphis From Space

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 Space Station shows a detailed view of the city of Memphis from low-Earth orbit. via NASA https://ift.tt/2q7bgyo

Transforming Aviation

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. via NASA https://ift.tt/2q3irqu

Hangout in Space

NASA astronaut Drew Feustel seemingly hangs off the International Space Station while conducting a spacewalk on March 29, 2018. via NASA https://ift.tt/2J8uJXz