Blog

Crews Move Artemis IV Liquid Hydrogen Tank

Crews at NASA’s Michoud Assembly Facility in New Orleans transport the 130-foot-tall Artemis IV liquid hydrogen tank out of a production cell inside the main factory building into a detached test building on a separate portion of the 829-acre site on May 15, 2026. The liquid hydrogen tank will form part of the core stage for […]

Posted July 23, 2026

Goddard Space Flight Center

Mars

Mars Exploration Program

MAVEN (Mars Atmosphere and Volatile EvolutioN)

Missions

NASA Centers & Facilities

NASA Directorates

Planetary Science Division

Planets

Science Mission Directorate

The Solar System

NASA’s MAVEN Illuminates New Understanding of Auroras at Mars

NASA MAVEN (Mars Atmosphere and Volatile Evolution) mission scientists have uncovered a key puzzle piece in understanding certain types of auroras on Mars, finding that they form in a similar way to Earth-based auroras. Results published Thursday in Nature Communications show the same mechanism that circulates and catapults charged particles into E

Posted July 23, 2026

ISS Research

International Space Station (ISS)

NASA Astronaut Chris Williams Closes Out Space Station Mission

After eight months aboard the International Space Station for his first mission, NASA astronaut Chris Williams is preparing to return to Earth.

Posted July 23, 2026

Earth Observatory

Ice & Glaciers

Surface Water

Topography

Olympic Mountain Glory

Snow-capped mountains carved by deep river valleys preside over northwestern Washington state.

Posted July 23, 2026

Aeronautics

Aerosciences Evaluation Test Capabilities

Langley Research Center

NASA to Showcase Agency’s Newest Wind Tunnel in Virginia

Media are invited to NASA’s Langley Research Center in Hampton, Virginia, on Friday, July 31, to attend a media tour and ribbon-cutting ceremony for the Flight Dynamics Research Facility, the agency’s first new wind tunnel in more than 40 years. The event will include a brief media availability with: This event is in person only […]

Posted July 22, 2026

Technology

Goddard Space Flight Center

Robotics

Robotic Servicing Mission Launches with NASA Support

Following its liftoff from Cape Canaveral on July 21 aboard a SpaceX Falcon 9 rocket, the Mission Robotic Vehicle (MRV) hosting the NASA-supported Robotic Servicing of Geosynchronous Satellites (RSGS) payload is now en route to geosynchronous Earth orbit, where it will use its advanced robotics to service spacecraft.

Posted July 22, 2026

Humans in Space

Christopher L. Williams

International Space Station (ISS)

NASA Sets Coverage for Astronaut Chris Williams, Crewmates Return

Editor’s Note: This advisory was updated on July 23, 2026, to reflect changes to the mission timeline. NASA astronaut Chris Williams and Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev are wrapping up their 241‑day mission aboard the International Space Station.

Posted July 22, 2026

A New Look – and Sound – for Messier 94

NASA’s Chandra X-ray Observatory unveiled this new look at the galaxy NGC 4736, also known as Messier 94, on June 30, 2026. Messier 94 is a spiral galaxy with a bright inner ring around it, called a starburst ring, where new stars are forming, perhaps fueled by gas driven in the unique oval-shaped structure seen […]

Posted July 22, 2026

Juno

Photojournal

Mapping Io’s Hidden Heat With NASA’s Juno

Description This graphic illustrates the areas of Jupiter’s moon Io sampled by the Microwave Radiometer (MWR) instrument aboard NASA’s Juno spacecraft during two close flybys. The black overlapping lines show the instrument’s footprints during Perijove 57 on Dec. 30, 2023, when the spacecraft primarily mapped the northern hemisphere.

Posted July 22, 2026

Juno

Photojournal

NASA’s Juno Peers Beneath Io’s Surface

Description This map represents data captured by the Microwave Radiometer (MWR) aboard NASA’s Juno spacecraft, indicating heat rising from just beneath the surface of Jupiter’s moon Io.

Posted July 22, 2026