“Ganymede: A Moon Like No Other” was uploaded to Flickr

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 ift.tt/2r9ZQcZ
embiggen by clicking https://flic.kr/p/23Wxu8Y
Ganymede: A Moon Like No Other was taken on April 30, 2018 at 05:30AM

“Dividing Line” was uploaded to Flickr

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 ift.tt/2HyjdHX
embiggen by clicking https://flic.kr/p/25dVM36
Dividing Line was taken on April 27, 2018 at 04:31AM

“Greece and the Aegean and Ionian Seas” was uploaded to Flickr

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 ift.tt/2HQry97
embiggen by clicking https://flic.kr/p/26yw42r
Greece and the Aegean and Ionian Seas was taken on April 02, 2018 at 10:11AM

“Celebrating National Park Week With a View of Mount Rainier” was uploaded to Flickr

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 ift.tt/2JsclrI
embiggen by clicking https://flic.kr/p/GTiMPH
Celebrating National Park Week With a View of Mount Rainier was taken on April 25, 2018 at 09:31AM

“Behold the Northern Lights” was uploaded to Flickr

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 ift.tt/2HTEPuZ
embiggen by clicking https://flic.kr/p/GQDiE4
Behold the Northern Lights was taken on April 23, 2018 at 10:54AM

“Gravity’s Rainbow” was uploaded to Flickr

Saturn’s rings display their subtle colors in this view captured on Aug. 22, 2009, by NASA’s Cassini spacecraft. via NASA ift.tt/2vGDJ3t
embiggen by clicking https://flic.kr/p/258KZ5c
Gravity’s Rainbow was taken on April 24, 2018 at 04:30AM

“The Galápagos Islands” was uploaded to Flickr

"The Enchanted Islands of #Ecuador – the Galápagos," were photographed by NASA astronaut Ricky Arnold from aboard the International Space Station. via NASA ift.tt/2Hf4zB6
embiggen by clicking https://flic.kr/p/24ZV2Ni
The Galápagos Islands was taken on April 13, 2018 at 11:23AM

“Celebrating 28 Years of the Hubble Space Telescope” was uploaded to Flickr

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 ift.tt/2vopVdE
embiggen by clicking https://flic.kr/p/Jc9F9G
Celebrating 28 Years of the Hubble Space Telescope was taken on April 19, 2018 at 05:30AM

“Sounding Rocket Launches CHESS Mission to Study the Matter Between Stars” was uploaded to Flickr

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 ift.tt/2HG8gkj
embiggen by clicking https://flic.kr/p/J8uu1o
Sounding Rocket Launches CHESS Mission to Study the Matter Between Stars was taken on April 17, 2018 at 12:47AM

“Seasons of Snow Cover in the West” was uploaded to Flickr

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 ift.tt/2qCFhXg
embiggen by clicking https://flic.kr/p/GzFzRZ
Seasons of Snow Cover in the West was taken on March 05, 2018 at 01:19PM

“NASA's TESS Mission Hopes to Find Exoplanets Beyond Our Solar System” was uploaded to Flickr

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 ift.tt/2HAq6VW
embiggen by clicking https://flic.kr/p/23nHBtC
NASA's TESS Mission Hopes to Find Exoplanets Beyond Our Solar System was taken on September 12, 2011 at 02:00PM

“The Aurora and the Sunrise” was uploaded to Flickr

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 ift.tt/2EEdzxh
embiggen by clicking https://flic.kr/p/24YnSD3
The Aurora and the Sunrise was taken on April 09, 2018 at 03:54PM

“Our Sun: Three Different Wavelengths” was uploaded to Flickr

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 ift.tt/2Hbs8xK
embiggen by clicking https://flic.kr/p/GnnLgK
Our Sun: Three Different Wavelengths was taken on April 10, 2018 at 04:31AM

“We Were There: 2018 USA Science and Engineering Festival” was uploaded to Flickr

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 ift.tt/2Hcq20R
embiggen by clicking https://flic.kr/p/Gkm4Gn
We Were There: 2018 USA Science and Engineering Festival was taken on April 06, 2018 at 06:16AM

“Hubble Finds an Einstein Ring” was uploaded to Flickr

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 ift.tt/2JrIFMa
embiggen by clicking https://flic.kr/p/HKZUwS
Hubble Finds an Einstein Ring was taken on February 25, 2018 at 11:36AM

“Gullies of Matara Crater” was uploaded to Flickr

Gullies on Martian sand dunes, like these in Matara Crater, have been very active, with many flows in the last ten years. via NASA ift.tt/2GDsf1J
embiggen by clicking https://flic.kr/p/25MLuK3
Gullies of Matara Crater was taken on April 05, 2018 at 04:31AM

“Memphis From Space” was uploaded to Flickr

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 ift.tt/2q7bgyo
embiggen by clicking https://flic.kr/p/25PU994
Memphis From Space was taken on October 30, 2014 at 11:29AM

“Transforming Aviation” was uploaded to Flickr

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 ift.tt/2q3irqu
embiggen by clicking https://flic.kr/p/G8rbik
Transforming Aviation was taken on April 03, 2018 at 04:22AM

“Hangout in Space” was uploaded to Flickr

NASA astronaut Drew Feustel seemingly hangs off the International Space Station while conducting a spacewalk on March 29, 2018. via NASA ift.tt/2J8uJXz
embiggen by clicking https://flic.kr/p/HBvfhu
Hangout in Space was taken on March 29, 2018 at 01:01PM