Space Missions

What's Next After the International Space Station?

NASA will end support for the International Space Station by 2030, transitioning low-Earth orbit to commercial operations.

NICER All-sky

Astronomy in Space with David Dickinson

NICER Maps the X-ray Sky

NASA's NICER instrument aboard the International Space Station is giving us a unique view of much of the X-ray sky.

Explore the Night with Bob King

Spice Up Your Space Station Watching

The annual International Space Station marathon is underway with multiple passes visible each night. Here are some fun and unique ways to see and share it.


Celestial News & Events

Antares Launch to Light Up Sunday Morning Sky

The Cygnus OA-9 mission launching from Wallops Island early Sunday morning could put on quite a show along the East Coast.

Celestial Objects to Observe

Satellite Transit Tool: Spot ISS Transits of the Sun and Moon

The International Space Station often passes close to the Moon, Sun, and naked-eye planets. Use this tool to plan viewing these close encounters.

H-IIB rocket

Astronomy in Space with David Dickinson

Watch Resupply Mission Chase Down the International Space Station

Find out how to see a cargo mission headed to the International Space Station this weekend.

International Space Station

Space Missions

Watch the International Space Station Marathon

The orbiting science laboratory begins a series of marathon passes this week that favor the northern hemisphere.

ISS slips into shadow over Iowa

Explore the Night with Bob King

Watch a Sunset with the ISS Astronauts

Watch the International Space Station as it passes into the shadow of the Earth, and learn what other features to keep an eye out for (such as the "water dump").