Tagged With Comets

Mysterious space objects like 'Oumuamua will visit our solar system again. Scientists may intercept the next one with a robotic probe.

The Hubble telescope spotted an asteroid that has grown two tails — and scientists think it's ripping itself to pieces

A bizarre interstellar object called 'Oumuamua continues to perplex astronomers a year after it vanished. Here's why a few scientists still wonder if it was alien.

NASA is about to explore Ultima Thule — the farthest object humanity has ever tried to visit. Here's what to expect from the 'mind-boggling' encounter 4 billion miles from Earth.

The Geminid meteor shower, one of the year's most spectacular, peaks tonight — here's how to watch

22 of the best photos of stars, galaxies, and space taken this year

A weird, cigar-shaped object flew through the solar system last year. Now astronomers may know where it came from

NASA has released its plan for nuking asteroids that threaten Earth -- and it includes a practice run

Evidence of an 'alien megastructure' 1,300 light-years from Earth is rapidly turning to dust

NASA's next billion-dollar mission will either visit Saturn's moon Titan or bring back samples of a distant comet

Astronomers have discovered a bizarre-looking object that came from outside our solar system

The Leonid meteor shower is peaking -- here's the best time to look for shooting stars

The asteroid that killed the dinosaurs triggered a global disaster far worse than scientists previously thought

Astronomers may have seen the first 'alien' space rock from beyond our solar system -- but some have doubts

A stunning new video shows what it's like to fly past a comet tumbling through space

The most spectacular meteor shower of the year peaks this week -- here's how to watch

Watch the unbelievable death spiral this spacecraft flew around a comet for 2.5 years

A star is hurtling towards our solar system and could knock millions of asteroids straight towards Earth

NASA scientist: Earth is overdue a dinosaur-killing asteroid strike, and we're woefully unprepared

How to watch the last brilliant meteor shower of the year -- with shooting stars travelling 80,000 mph