WASHINGTON (Reuters) - NASA is set to launch a spacecraft to Jupiter's moon Europa, considered one of our solar system's most ...

The existence of a moon located outside our solar system has never been confirmed but a new NASA-led study may provide ...

New research from NASA’s Jet Propulsion Laboratory suggests there may be a volcanic moon orbiting a planet 635 light-years ...

It won't land, but the robotic spacecraft will fly as close as 16 miles to the moon's frozen surface to probe oceans of ...

But a new NASA study may have found a clue that one is orbiting a planet some 635 light-years from Earth. The inference comes ...

Europa Clipper will peer beneath the moon’s icy crust where an ocean is thought to be sloshing fairly close to the surface.

"Detecting an exomoon would be quite extraordinary, and because of Io, we know that a volcanic exomoon is possible." ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

New research done at NASA's Jet Propulsion Laboratory reveals potential signs of a rocky, volcanic moon orbiting an exoplanet ...

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A small asteroid is set to be captured by Earth's gravitational pull, temporarily becoming a "mini-moon." This object will orbit the planet from September 29 to November 25 before escaping again.

Earth is getting a tiny new mini-moon for a few weeks. It won’t be the first – or the last. Earth is going to have its very own mini-moon from 29 September until 25 November. The regular Moon’s new, ...