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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
Woman using a solar telescope to look at the sun safely

Best solar telescopes 2026: Safely observe sun spots and solar eclipses

By Chris McMullen last updated

The best solar telescopes suitable for the next solar eclipse.

Skywatching Kit
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

Aurora forecast Jan. 16-18 - Northern lights chances rise as fast solar wind arrives

By Daisy Dobrijevic last updated

The latest aurora forecast for tonight help you make sure you're in the right place at the right time to see the northern lights.

Auroras
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
Images from the SETI@home project, including a screenshot of the SETI@home data and a man looking at a large computer with the same screen

This SETI program is chasing down its final 100 signals. Could one of them be from aliens?

By Keith Cooper published

SETI@home has been one of the largest citizen science projects ever, with millions of users around the world.

Search for Life

Every 'Avengers: Doomsday' teaser trailer revealed so far

By Jeff Spry published

It's apparently never too early to start the MCU hype machine rolling!

Space Movies & Shows
A circular patch with the letters "esa" in white against a blue background with the edge of the circle filled by various flags of countries around the world. Behind the patch are vertical strands of white numbers saying either 0 or 1 against a black background

Cyberthieves hit European Space Agency, stealing hundreds of gigabytes of data

By Tereza Pultarova published

A recent string of cyberattacks against the European Space Agency is just the tip of the iceberg, a researcher said, claiming that email credentials of ESA employees are regularly leaked online.

Space Exploration
Dark knots of interstellar dust are pictured blocking the light of more distant stars in a deep-space image. A knot of material to the lower left appears to take the form of a giraffe running left to right against the starfield beyond.

Giraffe in space? Eerie dark nebula takes on an uncanny shape (photo)

By Anthony Wood published

The shadow nebula LDN 1245 is located in the constellation Cassiopeia.

Astrophotography
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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