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Posts by
EarthSky Voices
Space
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
Meteors in moonlight: 6 tips for watching
Meteors in moonlight: it's not optimal, but it's happening for the Eta Aquariids in 2026! Here are 6 tips for watching this year's shower.
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
Solar Eclipse: Top 5 tips for photographing an eclipse
Are you hoping to get some great pics of the April 8 total solar eclipse? Here are 5 tips from NASA to help you capture some memories of this precious event.
January 1, 2026
Superkilonova: Double explosion could be first ever seen
Astronomers have detected a strange double explosion of a star and hypothesize that it is a kilonova following a supernova: a superkilonova.
December 30, 2025
Space
NASA’s SPHEREx observatory completes stunning 1st cosmic map
NASA's SPHEREx has produced its 1st cosmic map, revealing the entire sky in 102 colors. Take a look at this spectacular map.
December 28, 2025
Earth
The most exciting dinosaur discoveries of 2025
2025 was an amazing year for dinosaur discoveries, from dome-headed dinos to mini T. rexes. Here are some of the most exciting discoveries of the past year.
December 24, 2025
