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Earliest, hottest galaxy cluster gas could upend models
Astronomers have found the earliest, hottest galaxy cluster gas yet. This scorching gas between galaxies is hotter than expected for so early in the universe.
January 9, 2026
Potentially hazardous asteroid to pass Earth safely Monday
A potentially hazardous asteroid, 2005 UK1, will safely pass Earth on January 12, 2026. At this time it will be more than 32 times the moon's distance away.
January 8, 2026
Saturn-mass rogue planet revealed in unique new observations
Astronomers have discovered a Saturn-mass rogue planet nearly 10,000 light-years away. It's the 1st one found using both observatories on Earth and in space.
January 8, 2026
Betelgeuse’s companion star leaves detectable wake
Astronomers have detected the influence of Betelgeuse's companion star, Siwarha, on the gas around the red supergiant star.
January 8, 2026
Cloud-9 is a new type of object: a failed galaxy
Cloud-9 is the 1st example astronomers have found of a failed galaxy. Hubble found the galaxy contains no stars, but it is home to dark matter.
January 7, 2026
Supermassive black holes in all galaxies? Maybe not
A new study looked at 1,600 galaxies and found that the cores of small galaxies are less likely to be home to supermassive black holes.
January 6, 2026
Atmosphere on lava planet is an exciting surprise
Astronomers have found evidence for a thick atmosphere on lava planet TOI-561 b. It's a broiling hot super-Earth world 560 light-years from Earth.
January 2, 2026
Bright blue cosmic outbursts linked to black holes
Astronomers studying one of the strongest bright blue cosmic outbursts believe they occur in a binary star system where a black hole tears its companion apart.
January 2, 2026
Blaze Star to go nova soon! Here’s how to see it
A recurring nova - long overdue - in Corona Borealis - nicknamed Blaze Star - should appear bright enough to see with the unaided eye sometime in 2026.
January 1, 2026
What is an astronomical unit?
An astronomical unit - or AU - is a measurement that astronomers use to describe distances in the solar system. Find out how long an AU is here.
January 1, 2026
