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A buddy for Betelgeuse? Does this mean no supernova?
A recently-published study suggests the red giant star Betelgeuse may have a sun-size companion which might affect the star's brightness and variability.
September 10, 2024
LIVE on Monday: Moon crazy, with Robert Reeves
Join us from 12:15 CDT (17:15 UTC) on Monday, September 9, 2024, as lunar astrophotographer Robert Reeves discusses ways to appreciate our moon.
September 8, 2024
Moon’s volcanoes were erupting only 120 million years ago
Scientists in China, studying samples brought back by the Chang’e-5 mission, say that the moon's volcanoes were active as recently as 120 million years ago.
September 8, 2024
How asteroid Phaethon can spawn the Geminid meteors
Phaethon is a weird asteroid that behaves like a comet. It's also responsible for the Geminid meteor shower. Find out how it does so, here.
September 6, 2024
Small asteroid hit over the Philippines on September 5
A small asteroid harmlessly hit Earth's atmosphere above the northern Philippines around 16:39 UTC on September 5, 2024. Watch the videos of the event here!
September 5, 2024
Jupiter’s moon slammed and tipped by giant asteroid?
About 4 billion years ago, a huge asteroid - 20 times larger than Earth's dinosaur-killer - struck Jupiter's moon Ganymede and tilted its orientation.
September 5, 2024
Direct black hole images that are 50% clearer?
Astronomers with the Event Horizon Telescope Collaboration have developed a new technique that will produce direct black hole images with 50% better resolution.
September 2, 2024
Pioneer 11 swept past Saturn 45 years ago today
Pioneer 11 was the 1st spacecraft to encounter Saturn. A true pioneer, it paved the way for the 2 Voyagers in 1980 and 1981 plus Cassini from 2004 to 2017.
September 1, 2024
Water on exoplanets is mostly hidden deep inside
A new study shows there is likely much more water on exoplanets than previously thought. Most of it would be hidden in a planet's interior.
September 1, 2024
New Horizons measures the darkness of deep space
The New Horizons spacecraft - in the far reaches of our solar system - is in a dark enough environment to accurately measure the light of the distant universe.
August 30, 2024
