Solar System

Latest about Solar System

A series of black streaks across a brown sandy surface

Mars orbiter spies 'barcode' aftermath of rare Red Planet avalanche caused by meteoroid impact

By Sharmila Kuthunur published

A European Mars orbiter spotted barcode-like dust streaks on the slopes of Apollinaris Mons, revealing how tiny avalanches help drive the Red Planet's massive dust cycle.

Mars

Sun unleashes strongest solar flare of 2025, sparking radio blackouts across Africa and Europe

By Daisy Dobrijevic last updated

The X5.1-class eruption from sunspot AR4274 is this year's most powerful solar flare and Earth is in the firing line.

The Sun
A white streak of a comet's tail can be seen in the center of the image as it streaks diagonally from top right to lower left between the dark silhouette of rocks blocking part of the starry night sky

Comet Lemmon lights up the sky over Spain | Space photo of the day for Nov. 11, 2025

By Kenna Hughes-Castleberry published

This image captures Comet Lemmon in dramatic fashion, its bright coma and faint tail arcing across the starfield.

Comets

What is the moon phase today? Lunar phases 2025

By Tariq Malik, Daisy Dobrijevic last updated

Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.

Reference
A series of 8 boxes showing various cell types with some blue tinted, some green tinted, and some red tinted

Scientists 3D printed muscle tissue in microgravity. The goal is to make human organs from scratch

By Jessica Rendall published

Scientists just 3D printed human muscle tissue in microgravity conditions. The ultimate goal is to make organs in space.

Earth
A series of red rings arcing over a white light in the middle of the image

ESA's sun spacecraft captures 1st close-up of our star's magnetic engine in motion

By Sharmila Kuthunur published

"Solar Orbiter can now provide this missing piece of the puzzle."

The Sun
An image from space showing a gray plume of smoke drifting over brown and snowy mountains

Volcano belches ash over Chile | Space photo of the day for Nov. 10, 2025

By Kenna Hughes-Castleberry published

The European Space Agency's Copernicus Sentinel-2 satellite mission captured a plume of ash over the Planchón-Peteroa volcanic complex.

Earth
A streak of white shows interstellar comet 3I/ATLAS in the center of a starry night sky

No, interstellar comet 3I/ATLAS hasn't 'changed color', scientist says

By Brett Tingley published

While media outlets have reported that curious interstellar comet 3I/ATLAS has changed color, the scientists behind a recent study say that isn't actually the case.

Comets
Jupiter’s moon Io is the most volcanically active world in the solar system. This high-resolution image of Jupiter’s fifth moon was captured by NASA’s Galileo spacecraft and was published on 18, Dec. 1997.

Jupiter's volcanic moon Io may be hundreds of times hotter than scientists thought

By Robert Lea published

NASA's Juno spacecraft has revealed that the solar system's most volcanic body is even hotter than scientists thought.

Jupiter
The interstellar comet 3I/ATLAS, imaged from Mars orbit by China's Tianwen 1 spacecraft on Oct. 3, 2025.

China's Tianwen 1 Mars probe captures images of interstellar comet 3I/ATLAS

By Andrew Jones published

China's Tianwen 1 spacecraft has imaged the interstellar comet 3I/ATLAS from Mars orbit, contributing to global efforts to study the rare visitor from beyond the solar system.

Comets
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