Astronomy
Latest about Astronomy
13 record-breaking space discoveries of 2023
By Keith Cooper published
Some of the strongest, longest, smallest, biggest and best reasons to celebrate space as the year comes to a close. There are a handful of awesome firsts in here too.
Intergalactic 'stream of stars' 10 times longer than the Milky Way is the 1st of its kind ever spotted
By Harry Baker published
While hunting for dark matter, astronomers accidentally discovered the first known stellar stream stretching between galaxies. The trail of stars is also the longest ever seen.
James Webb Space Telescope's 'Cosmic Christmas Bauble' earns spot in White House Advent Calendar (photo, video)
By Robert Lea published
The powerful space telescope's image of Cassiopeia A shining brightly and silently was revealed as part of the first-ever White House Advent Calendar.
This 'forbidden' exoplanet is way too massive for its star
By Robert Lea published
"This discovery really drives home the point of just how little we know about the universe. We wouldn’t expect a planet this heavy around such a low-mass star to exist."
Gemini South Telescope in Chile to run solely on clean energy by 2027
By Sharmila Kuthunur published
NOIRLab says it's on track to halve its planet-warming emissions by the end of 2027.
Data science helps cross-check space discoveries 'across time and telescopes'
By Elizabeth Fernandez published
It’s not always easy to match objects from various telescopic surveys. A new method can change this, allowing objects to be matched in up to 100 different surveys.
'Lunar swirls' have confused scientists for years. New NASA moon data might clear things up
By Robert Lea published
"Finding a relationship with topography in one swirl location could just be a fluke, but finding it in two vastly separate swirl regions is harder to ignore."
What did ancient humans know about astronomy?
By Paul Sutter published
Humanity's ability to track and monitor celestial cycles stretches back into prehistory, long before the invention of telescopes and astrolabes.
Get the Space.com Newsletter
Breaking space news, the latest updates on rocket launches, skywatching events and more!