Scientists found a ‘bathtub ring’ on Mars. Could it be evidence of an ancient Red Planet ocean?

A huge geological structure on Mars resembling a bathtub ring may be evidence of an ocean that once covered a third of the Red Planet.

A peek at the far side of the moon | Space photo of the day for April 20, 2026

The Artemis 2 astronauts captured a unique image of the moon’s “dark side” during their historic April 2026 flyby.

‘Dark subhaloes’ may explain why galaxies seem to form pre-determined shapes

Our universe is full of mysteries, but few are as perplexing as the dark, tiny galaxies that hover around larger ones like the Milky Way.

Synthetic universe allows you to ‘see and hear’ galaxies evolving from the dawn of time (video)

Scientists have used a synthetic universe to observe how the first galaxies evolved and grew. In fact, it is so close to the real thing that it’s tricking some astronomers.

This life-hunting rover may be SpaceX’s 1st-ever Mars launch

SpaceX will launch Europe’s life-hunting Rosalind Franklin rover toward Mars in 2028 — but not aboard the company’s Starship megarocket.

‘Tall waves moving in slow motion’: Here’s how oily oceans on Saturn’s giant moon Titan may behave

The size of waves on alien worlds will depend as much on the characteristics of the liquid as well as the gravity.

Interstellar invader comet 3I/ATLAS made a startling transformation as it passed the sun

The interstellar comet 3I/ATLAS changed significantly as it flew by the sun last fall, astronomers have discovered.

This giant telescope could discover habitable exoplanets and secrets of our universe — if it gets its funding

Things are gearing up in the development of the Giant Magellan Telescope in Chile, as its developers enter the final design phase before the project goes before Congress for funding.