In the constellation Cygnus, a bright knot of stars seems to adorn one edge of a nearly perfect 20-light-year-wide circle, ...

NASA's SOFIA observatory captured a rare image of a glowing gas ring in Cygnus X — a vast star-forming region 4,500 ...

The powerful coronal mass ejection would have likely destroyed the atmospheres of any potentially habitable planets nearby ...

NASA’s Swift space telescope is running out of altitude, but a privately funded spacecraft is being readied to push it higher ...

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

The object is the third interstellar visitor to our solar system ever confirmed. It will reach its closest point to Earth ...

Astronomers have detected a mysterious cosmic 'heartbeat' repeating every 22 minutes, unlike any known celestial object.

The observation of the low-energy γ-ray (0.1 to 30 MeV) sky has been significantly limited since the Imaging Compton ...

In the July 2003 issue of Astronomy, Bob Berman describes some of the space age’s failures, from the tragic loss of the shuttles Columbia and Challenger to the nearly catastrophic Apollo 13 mission.

Exploring one of science's most exciting frontiers, the book "Life in Space" bridges astrophysics and biology to uncover the ...

Astronomy magazine's Editor Emeritus, Dave Eicher, encourages pre-dawn observation of the zodiacal light. The zodiacal light is described as having a triangular, inverted cone-like appearance.