Exciting February sky events include Venus at its brightest and closest to Earth, the moon occulting the Pleiades, and a parade of planets in the post-sunset sky.

February brings a rare planetary parade, with five bright planets in clear view and a special alignment of Mercury and Saturn ...

A colossal explosion in the sky, unleashing energy hundreds of times greater than the Hiroshima bomb. A blinding flash nearly ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

The Mars Express orbiter launched to the Red Planet. Twenty years later, ESA has delivered a high resolution color image of Mars along with a time-lapse of "webcam" images that were released in near ...

Earth is home to some truly bizarre and breathtaking landscapes — here are 20 that look straight out of an alien world.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

New research reveals ancient ripples on Mars, providing compelling evidence of long-lost lakes that once existed 3.7 billion ...

Though it's a cold, dead planet, Mars still has its own natural beauty about it. This image shows us something we'll never see on Earth.

The alignment of six planets – Mars, Jupiter, Uranus, Neptune, Saturn, and Venus – this month has sky photographers abuzz.

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

Located less than 20 light years away, HD 20794d could potentially be one of the most Earth-like planets found so far, ...