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Tiny Mars moon Deimos gets a rare close-up, thanks to Europe's Hera asteroid probe (photos)
By Keith Cooper published
Europe's HERA mission has taken a good look at Mars and its moon Deimos on its way to explore the aftermath of the DART impact in the Didymos–Dimorphos asteroid system.

Saturn officially has 128 more moons
By Stefanie Waldek published
The grand total of Saturnian moons is now 274.

Saturn's moons: Facts about the weird and wonderful satellites of the ringed planet
By Daisy Dobrijevic last updated
Reference Saturn has the most moons of any other planet in the solar system. Here we explore some of the 274 moons that orbit the ringed planet.

Dead Athena moon lander seen inside its crater grave from lunar orbit (photos)
By Mike Wall published
Intuitive Machines' Athena lander died inside a small crater near the moon's south pole, photos by NASA's Lunar Reconnaissance Orbiter show.

Astronomers crack the case of a mysterious deep space radio signal that repeats every 2 hours
By Robert Lea published
Astronomers have traced a starnge blast of radiowaves that repeats every 2 hours back to a dead star white dwarf magnetically slamming its stellar companion.

Scientists discover smallest galaxy ever seen: 'It's like having a perfectly functional human being that's the size of a grain of rice'
By Robert Lea published
Astronomers have discovered the smallest dwarf galaxy ever seen. It is a mystery how the satellite galaxy of Andromeda survived the blistering conditions of the early universe.

World's largest iceberg runs aground in South Atlantic after 1,200-mile journey (satellite photos)
By Samantha Mathewson published
Earth's largest iceberg has run aground off the coast of South Georgia Island, a common rendezvous spot for big bergs, new satellite images show.

Life on Mars? It probably looks like something you'd find in your stomach
By María Rosa Pino Otín published
Organisms known as extremophiles have been found inhabiting a range of extreme conditions on Earth, including inside our bodies. Could they be on Mars, too?

The next ice age is coming in 10,000 years — unless climate change prevents it
By Keith Cooper published
Natural cycles in Earth's rotational axis and its orbit around the sun drive climatic changes, and now researchers have matched up specific points in those cycles to the timing of ice ages.
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