Comets have long been seen as omens and portents, and it's easy to understand why. They first appear as faint smudges of light in the sky, sometimes fading soon after and sometimes becoming brighter ...

The chances that such a comet would be headed directly for Earth are rather low, but not zero. Astronomers estimate that such a collision with a large comet occurs roughly every few million years.

U.S. Naval Research Laboratory’s CCOR captured solar CME images, while the LASCO telescope observed comet Tsuchinshan-ATLAS ...

Set your calendars on Nov. 18 (probably) for the Leonids meteor shower in the peak morning. You don't need a telescope to ...

Now 94 million miles (151 million kilometers) from Earth and ... light to the comet. Look above Venus for the bright star Vega in the constellation Lyra. Look halfway between Venus and Vega ...

The remains of another planet that collided with Earth and formed ... years ago – a huge collision known as the ‘giant impact ...

The planet Jupiter has no solid ground – no surface, like the grass or dirt you tread here on Earth. There’s nothing to walk ...

The comet reached its perihelion on Monday at 7:30 a.m. ET and was completely vaporized after passing within 1% of Earth’s distance ... are “few and far in between,” Battams said.

A man has died and six other people have been taken to hospital after a collision between two cars at a crossroads in Cornwall. An 18-year-old man has also been arrested on suspicion of causing death ...

A recently discovered comet that scientists and amateur astronomers hoped would be visible on Halloween was in an orbit a … ...

How did life on Earth evolve? These questions had preoccupied him throughout grad school, and long after he earned his PhD in 1997. The answers, Lauretta believed, could be found within asteroids and ...