This image shows the Highfield drill hole, on Vera Rubin Ridge in Gale crater on Mars, made by NASA’s Curiosity rover in its search for rock samples. Just recently, scientists announced that an analysis of rock samples collected by the rover were enriched in carbon 12, a type of carbon that on Earth is associated with biological processes. http://www.nasa.gov/sites/default/files/thumbnails/image/martian-drill-hole.png

Retired U.S. Air Force Honorary Brigadier General Charles McGee, left, spoke with NASA astronaut Alvin Drew in 2020. http://www.nasa.gov/sites/default/files/thumbnails/image/49493710476_a7f7b04bd5_o.jpeg

In this image from Jan. 9, 2022, NASA astronaut Kayla Barron peered out from a window inside the International Space Station's cupola. http://www.nasa.gov/sites/default/files/thumbnails/image/iss066e109584.jpg

The spiral arms of the galaxy NGC 3318 are lazily draped across this image from the NASA/ESA Hubble Space Telescope. This spiral galaxy lies in the constellation Vela and is roughly 115 light-years away from Earth. http://www.nasa.gov/sites/default/files/thumbnails/image/hubble_ngc3318_potw2203a_0.png

NASA's Jet Propulsion Laboratory is designing mission concepts to survive the planet's extreme temperatures and atmospheric pressure. http://www.nasa.gov/sites/default/files/thumbnails/image/imagesvenus20191211venus20191211-16.jpeg

This colorized schlieren image is of a small-scale model of NASA’s X-59 Quiet SuperSonic Technology airplane. http://www.nasa.gov/sites/default/files/thumbnails/image/28x6_x-59_rdg-6753_average_cleaned_red_blue_black.jpg

Much like the sky, rivers are rarely painted one color. http://www.nasa.gov/sites/default/files/thumbnails/image/usrivers_oli_2018_lrg_0.jpeg

On Jan. 27, 1967, tragedy struck on the launch pad at Cape Kennedy during a preflight test for Apollo 204 (AS-204). http://www.nasa.gov/sites/default/files/apollo_1_crew_during_water_egress_training_june_1966_1.jpg

In this image taken in 1985, four members of the Challenger STS-51L crew train on the flight deck of the shuttle crew compartment. http://www.nasa.gov/sites/default/files/thumbnails/image/sts_51l_cct_flight_deck_dec_17_1985_s85-46207.jpg

To learn how ocean water is melting glaciers, NASA’s Oceans Melting Greenland mission extensively surveyed the coastline of the world’s largest island. http://www.nasa.gov/sites/default/files/thumbnails/image/1-main-omg-eom-1041.jpg

​The bright Sun dissects the airglow above Earth's horizon in this view photographed with a digital still camera from during the STS-107 mission. http://www.nasa.gov/sites/default/files/thumbnails/image/209783main_s107e05070_full.jpeg

Dr. Christian Braneon, a climate scientist at NASA GISS, presents data visualizations and the state of current satellite missions to Vice President Kamala Harris. http://www.nasa.gov/sites/default/files/thumbnails/image/51663728897_cef2f7365f_o.jpeg

This object is, in fact, a pair: a white dwarf star that steadily burns at a relatively cool temperature and a highly variable red giant. http://www.nasa.gov/sites/default/files/thumbnails/image/archives_raquarii.jpg

Divers at the Neutral Buoyancy Laboratory (NBL) in Houston are setting the stage for future moonwalk training by simulating lunar lighting conditions. http://www.nasa.gov/sites/default/files/thumbnails/image/jsc2022e001692.jpg

Ths January 2022 image shows the first rays of an orbital sunrise as seen from the International Space Station as it orbited above Venezuela. http://www.nasa.gov/sites/default/files/thumbnails/image/iss066e109851.jpg

Mathematician Daniel G. Nichols, who worked in the Real-Time Program Development Branch, Mission Planning and Analysis Division, is photographed in NASA's Manned Space Center. http://www.nasa.gov/sites/default/files/thumbnails/image/s66-20368.jpeg

Astronaut Mark Vande Hei peers at the Earth below from inside the seven-windowed cupola, the International Space Station's window to the world. http://www.nasa.gov/sites/default/files/thumbnails/image/iss066e136051.jpg

​This view of Jupiter was taken by Voyager 1. http://www.nasa.gov/sites/default/files/thumbnails/image/pia01384.jpeg

This image from the NASA/ESA Hubble Space Telescope feels incredibly three-dimensional for a piece of deep-space imagery. The image shows Arp 282, an interacting galaxy pair composed of the Seyfert galaxy NGC 169 (bottom) and the galaxy IC 1559 (top). http://www.nasa.gov/sites/default/files/thumbnails/image/hubble_arp282_potw2206a.jpg

Dr. Lyndsey McMillon-Brown at NASA’s Glenn Research Center leads a study of solar cells made from a material called perovskite. http://www.nasa.gov/sites/default/files/thumbnails/image/lyndsey.jpg