Four astronauts are about to fly around the moon on NASA's Artemis 2 mission, and you can join them by adding your name to the mission. Here's how.

Astronomers have long searched for clues that a hidden companion star sits out of view near the red supergiant star ...

NASA says Artemis II is a major step toward returning humans to the moon — and eventually sending astronauts to Mars. For the ...

Young stars need time to grow into their final masses before they begin fusing lighter elements into heavier elements as main ...

January new moon brings darker skies and prime stargazing conditions across hemispheres. A new moon takes place when the Sun ...

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This collection of new images taken by NASA’s Hubble Space Telescope showcases protoplanetary disks, the swirling masses of ...

Just-forming stars, called protostars, dazzle a cloudy landscape in the Orion Molecular Cloud complex (OMC). These three new images from NASA’s Hubble Space Telescope were taken as part of an effort ...

The towering rocket that will help propel a group of astronauts on NASA's first human moon mission in half-a-century may soon ...

In the days ahead, NASA could roll out the SLS rocket that will propel four astronauts on a journey around the moon. Here's ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

One simple reason stars look brighter in winter is that the nights are much longer. When the Sun sets earlier, we have more ...