Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other ...

The sixth day of the 18th annual Space Telescope Advent Calendar features the final act of a star near the end of its life.

After cataloging thousands of worlds beyond our solar system, astronomers are now closing in on a far rarer prize: a moon ...

Researchers have discovered a large, orderly spiral galaxy that formed soon after the Big Bang, when space was only about 1.5 ...

NASA has selected two science instruments designed for astronauts to deploy on the surface of the Moon during the Artemis IV mission to the lunar south polar ...

Fleets of satellites interfere with snapshots taken by Earth-bound observatories. But a new study suggests these orbiters ...

The fifth day of the 18th annual Space Telescope Advent Calendar features a close view of a distant and colorful spiral ...

Using NASA's Kepler space telescope, Chinese astronomers have observed a binary star system known as KIC 5623923. As a result ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

NASA has explored the space beyond Earth and our solar system with spacecraft like Voyagers 1 and 2, and how we’ve discovered ...

China search for Earth 2.0 leads a bold 2026–2030 space plan to probe the early universe, our Sun, and Earth-like exoplanets.

Every week, Space.com delivers the latest discoveries, launches, and cosmic curiosities from across the universe. From ...