See the top 10 stories of 2024 from EarthSky

Here are the top 10 stories of 2024. We had a busy year with asteroids hitting Earth's atmosphere, dinosaur tracks, cicadas and more!

ESA’s 2025 calendar: Best of Hubble and Webb

The European Space Agency has announced its 2025 calendar, featuring the best images from Hubble and Webb from the past year. And it's free for you to download!

Moon’s largest crater is rounder than 1st thought

The South Pole-Aitken basin is the moon's largest crater. Scientists have thought it was oval-shaped, but a new study suggests it's more circular.

NASA reports on Ingenuity Mars helicopter accident

Preliminary findings from NASA indicate the Ingenuity Mars helicopter’s accident on January 18, 2024, was due to problems with its navigation systems.

How to catch a supernova explosion before it happens

Astronomers are looking for signals that a star is about to go supernova. Some stars give no warning while others have slowly brightened before exploding.

Hubble’s closest look at a quasar reveals … weirdness

NASA's Hubble Space Telescope has taken the closest-ever look at a distant quasar. The new images reveal complex blobs and filaments around the quasar.

Webb finds smallest asteroids yet in the asteroid belt

Astronomers have discovered 138 of the smallest asteroids to date in the asteroid belt between Mars and Jupiter. All of them are within 10s of meters in size.

Astronomers map giant starspots on distant XX Trianguli

Astronomers have mapped starspots over a 16-year period on a star named XX Trianguli using advanced Doppler imaging techniques.

Odd, slowly repeating radio bursts traced to red dwarf star

Astronomers have finally pinpointed the source of slowly repeating radio bursts: a red dwarf star with a possible white dwarf binary companion.

NASA’s Lucy spacecraft skimming Earth’s atmosphere today!

The Lucy spacecraft will make a close approach to Earth today. Its 6-year mission will carry it through the main asteroid belt and into the orbit of Jupiter.