The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...

Ahead of its dance with Saturn on Feb. 24, Mercury should be seen on Feb. 19 at magnitude -1.2 with binoculars 20 minutes ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

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Hidden ice? NASA’s Lunar Trailblazer will reveal where the Moon’s water really is 'Earth will flip': A 42,000-year-old tree ...

On February 16, 1948, the Dutch-American astronomer Gerard Kuiper discovered Miranda, a moon of Uranus. This was the fifth moon to be discovered at Uranus, but astronomers have found 27 by now. When ...

ASTRONOMERS may have just found the fastest exoplanet system in the galaxy – a super-Neptune world orbiting a hypervelocity ...

A team of international researchers have confirmed the discovery of a super-Earth, which is orbiting in the habitable zone of a nearby star, similar to the sun. The planet was originally identified ...

If a star orbits a black hole, it will appear from a distance to be orbiting empty space. Gaia projects the star’s orbit on a ...

Artistic rendering shows an asteroid or comet striking near the Moon's south pole about 3.8 billion years ago ...

This technique involves measuring the subtle motion of a star as it is tugged by the gravity of an orbiting planet by looking at how the star moves compared to background or nearby stars.