The Perseid meteor shower is considered the best of the year due to the 50 to 100 meteors viewers can see per hour.

On Aug. 10, 1972, an Earth-grazing fireball burst through the sky over North America. It didn't hit the ground, but instead ...

The best time to watch a meteor shower is in the early predawn hours when the moon is low in the sky. Competing sources of light — such as a bright moon or artificial glow — are the main obstacles to ...

A cosmic visitor is stirring up an earthly debate. A Harvard University astrophysicist has suggested the incoming ...

Mankind must decide how it’s going to deal with contact with extraterrestrials — and time could be running out, one expert warned — after he sounded the alarm that an incoming ...

Meteor showers occur when Earth passes through trails of dust and debris left behind by comets or asteroids. The Perseids ...

This new measurement suggests some comets — particularly those such as 12P/Pons-Brooks — could indeed have delivered water, and possibly other life-essential elements, to a young Earth.

Metallic beads in Arctic mud point to a comet impact that may have triggered the Ice Age 12,800 years ago, challenging ...

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

NASA’s Hubble Space Telescope has captured its most detailed image yet of interstellar comet 3I/ATLAS. The rare comet is ...

The comet is hurtling our way at 130,000 mph, but will veer closer to Mars than Earth, keeping a safe distance from both.

“Alien: Earth” surprises: From xenomorph teeth to a “White Lotus” star Noah Hawley answers burning questions about FX's upcoming "Alien" TV show ...