“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