This long-exposure photograph, taken over 31 minutes from a window inside the International Space Station’s Kibo laboratory module, captures the graceful arcs of star trails.

Sea ice is frozen seawater that floats in the ocean. This photo, taken from NASA’s Gulfstream V Research Aircraft on July 21, 2022, shows Arctic sea ice in the Lincoln Sea north of Greenland.

NASA astronauts Jonny Kim and Zena Cardman, both Expedition 73 Flight Engineers, pose for a portrait inside the International Space Station's Unity module during a break in weekend housecleaning and maintenance activities. Kim and Cardman are both part of NASA Astronaut Group 22 selected in June 2017 with 12 other astronauts, including two Canadian Space Agency astronauts, and affectionately nicknamed «The Turtles.»

Orion Mission Evaluation Room (MER) team member works during an Artemis II mission simulation on Aug. 19, 2025, from the new Orion MER inside the Mission Control Center at NASA’s Johnson Space Center in Houston.

The 25th anniversary logo is visible in the cupola of the space station in this July 17, 2025, image. The central astronaut figure is representative of all those who have lived and worked aboard the station during the 25 years of continuous human presence. In the dark sky of space surrounding the astronaut are 15 stars, which symbolize the 15 partner nations that support the orbiting laboratory.

Expedition 73 Flight Engineer Jonny Kim from NASA and Axiom Mission 4 Commander Peggy Whitson work together inside the International Space Station's Destiny laboratory module setting up research hardware to culture patient-derived cancer cells, model their growth in microgravity, and test a state-of-the-art fluorescence microscope.

The Bumper V-2 launches from Cape Canaveral in this July 24, 1950, photo.

On July 19, 2013, in an event celebrated the world over, NASA's Cassini spacecraft slipped into Saturn's shadow and turned to image the planet, seven of its moons, its inner rings, and, in the background, our home planet, Earth.

NASA’s X-59 quiet supersonic research aircraft taxis across the runway during a low-speed taxi test at U.S. Air Force Plant 42 in Palmdale, California, on July 10, 2025. The test marks the start of taxi tests and the last series of ground tests before first flight.

Researchers from NASA and the Japanese Aerospace Exploration Agency (JAXA) recently tested a scale model of the X-59 experimental aircraft in a supersonic wind tunnel located in Chofu, Japan, to assess the noise audible underneath the aircraft. The test was an important milestone for NASA’s one-of-a-kind X-59, which is designed to fly faster than the speed of sound without causing a loud sonic boom.

This is the most accurate natural color image of Pluto taken by NASA's New Horizons spacecraft in 2015.

This NASA Hubble Space Telescope image features a dense and dazzling array of blazing stars that form globular cluster ESO 591-12.

The aurora australis arcs above a partly cloudy Indian Ocean in this photograph from the International Space Station as it orbited 269 miles above in between Australia and Antarctica on June 12, 2025.

Three members of NASA's Lewis Research Center’s (now NASA’s Glenn Research Center) Educational Services Office pose with one of the center’s Spacemobile space science demonstration units on Nov. 1, 1964.

This close-up view of the United States flag plate on NASA's Perseverance was acquired on June 28, 2025 (the 1,548th day, or sol, of its mission to Mars), by the WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) imager on the turret at the end of the rover's Mars robotic arm.

NASA astronaut and Expedition 73 Flight Engineer Jonny Kim works inside the SpaceX Dragon cargo spacecraft completing cargo operations before it undocked from the International Space Station's Harmony module several hours later.

The bright variable star V 372 Orionis takes center stage in this image from the NASA/ESA Hubble Space Telescope, which has also captured a smaller companion star in the upper left of this image. Both stars lie in the Orion Nebula, a colossal region of star formation roughly 1450 light years from Earth.

This illustration shows the parts of a space shuttle orbiter. About the same size and weight as a DC-9 aircraft, the orbiter contains the pressurized crew compartment (which can normally carry up to seven crew members), the cargo bay, and the three main engines mounted on its aft end.

The Space Shuttle Atlantis returned to work after a refurbishing and a two-year layoff, as liftoff for the mission occurred on Nov. 3, 1994. Five NASA astronauts and an ESA (European Space Agency) astronaut were aboard for the Atmospheric Laboratory for Applications and Science (ATLAS-3) mission.

The spiral galaxy in this NASA/ESA Hubble Space Telescope image is IC 3225. It looks remarkably as if it was launched from a cannon, speeding through space like a comet with a tail of gas streaming from its disk behind it.