Snowball Earth’s liquid seas dipped way below freezing

Iron isotopes show that salty seawater pockets beneath the ice were as cold as −15°C.

Moons of the solar system: A space-themed word search

Hunt for the names of the many moons surrounding our solar system’s eight planets.

Apollo moon rocks may have finally solved an old lunar mystery

A new analysis of Apollo moon samples reveals insight into the history of the lunar magnetic field.

Why are there so many ‘space snowmen’ in our solar system? New study offers clues

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple way in which these mysterious objects might form.

Antarctica’s ‘gravity hole’ reveals the evolution of Earth’s deep interior

A persistent “gravity hole” beneath Antarctica gives scientists a window into Earth’s deep interior, showing how processes far below reshape the planet’s gravity field over millions of years.

The sun hasn’t looked like this since 2022, what’s going on?

The sun’s visible disk has been perfectly free from sunspots for the first time since June 2022, suggesting the current solar cycle might be heading toward its quieter phase.

A risky maneuver could send a spacecraft to interstellar comet 3I/ATLAS. Here’s the plan

By taking advantage of a maneuver that would see a spacecraft fire rocket engines while in the solar corona, that spacecraft’s velocity could receive a huge boost — enough to allow it to catch up with 3I/ATLAS, which is th…

What’s the point of a space station around the moon?

Is an orbiting space station necessary to achieve lunar objectives, including scientific ones?

Could one of Europe’s most important wetlands really vanish? Satellites show it may happen in our lifetime

New satellite imagery reveals that Doñana National Park, one of Europe’s most valuable wetlands, is shrinking so rapidly that it could disappear within a human lifetime.

AI helps find new clues in the 60-year search for Luna 9, the 1st successful moon lander

Scientists may have narrowed down the landing site of the Soviet Union’s Luna 9, which in 1966 became the first spacecraft to touch down softly on the moon.