Astronomy

Latest about Astronomy

A illutsration of particle annhilation creating antimatter in then form of antihelium

Does antimatter 'fall up'?

By Paul Sutter published

We need to talk about antimatter.

Dark Universe
An illustration of all the solar system planets arranged in an arc around the sun

What is below Earth, since space is present in every direction?

By Jeff Moersch published

When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our space neighborhood.

Astronomy
Outbursts from an infant star light up the interstellar clouds HH 80 and HH 81

Hubble Telescope watches star blast out jet of hot gas 32 light-years long

By Robert Lea published

The protostar is launching the longest outburst ever seen at 32 light-years long.

Stars
A black and white crossword puzzle sits underneath a blue and white coffee cup with the Space.com black and white logo in the bottom left corner.

Space.com headlines crossword quiz for week of Jan. 12, 2026: What is an Einstein-Rosen bridge more commonly known as?

By Kenna Hughes-Castleberry published

Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.

Astronomy
A close up of Jupiter's surface in space where clouds of blue and gray swirl.

Jupiter has more oxygen than the sun, new simulations reveal

By Samantha Mathewson published

Jupiter harbors more oxygen than the sun, a new study finds, giving astronomers a crucial clue about how our solar system's planets formed.

Jupiter
Clouds of blue and gold are mixed with bright twinkling blue and white lights against a dark background

Hubble Telescope sees baby stars hard at work | Space photo of the day for Jan. 16, 2025

By Kenna Hughes-Castleberry published

Ba-by stars, doo doo doo doo doo doo.

Stars
Artist’s illustration of NASA's MAVEN spacecraft, which is investigating how, why and when Mars lost most of its atmosphere.

After a month of no answer, NASA will try hailing its silent MAVEN Mars orbiter today

By Sharmila Kuthunur published

MAVEN was built to last in orbit until 2030 — that's not looking likely anymore.

Mars
A laptop is shown displaying an image of a comet against a dark sky dotted with background stars blurred by their subtle motion through the sky. The laptop is set against a starry deep-space background complete with red nebula clouds.

Say goodbye to Comet 3I/ATLAS! Watch it head for interstellar space in real-time with this free livestream today

By Anthony Wood published

3I/ATLAS is heading away from the sun on an escape trajectory from our solar system.

Comets
A close up of Earth in the darkness of space with a white shape in the middle of its oceans and clouds.

Beneath the ice: Satellites help map Antarctica's subglacial surface like never before

By Stefanie Waldek published

Antarctica's subglacial bedrock was previously one of the least-mapped planetary surfaces in our solar system.

Earth
A photo of Earth (left) and Mars (right) against a dark background. Earth is bigger and white clouds float among blue oceans while Mars as a few white clouds dotting its reddish brownish surface

How Mars 'punches above its weight' to influence Earth's climate

By Keith Cooper published

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if Mars weren't there?"

Mars
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