One of the oldest unsolved riddles in planetary science concerns the origin of the moon. Over a century ago, George Darwin ...

The modified Mira launched in January 2025 on SpaceX's Transporter 12 rideshare mission, which hauled 131 payloads to low ...

Mars looks quiet today, but new research suggests the planet’s surface still carries the rhythm of a vanished companion.

Lunar rocks are famously dry. They contain almost none of the volatile elements that easily escape into space, such as ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

The galaxy’s most common stars may be missing a key ingredient for life: Long-lived moons. Most stars in our galaxy are small ...

There are two small moons in orbit around Mars today, but both may be remnants of a much larger moon that had enough of a ...

Even worse, the orbit of Mars is elliptical (think of a slight oval rather than a perfect circle), which means that sometimes ...

NASA announced that it lost contact with the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft after it orbited ...

Regular, alternating layers in Gale Crater may have been deposited as the result of tides raised by a moon at least 18 times ...

If you're going to Mars you'd best take along a jar of anti-aging cream because while you're there you're going to age faster ...