On average, 10 long-period and 20 short-period comets cross Earth's orbit each year ... Also, some comets can crash into the Sun, while others simply burn out and turn dormant.

(CNN) - Scientists are turning to some very powerful technology to track an asteroid that could crash into Earth ... as to whether the comet could collide with Earth. They’ll have to work ...

The pyrotechnics were in fact caused by a Space X Falcon 9 rocket re-entering the Earth's atmosphere. There are reports of sightings in Denmark, Sweden and England. Pieces of the rocket then crashed ...

(CNN) - The odds of an asteroid hitting the Earth in seven years have increased once again. Astronomers said the threat posed by Asteroid 2024 YR4 now exceeds the threat posed by the widely known ...

(CNN) - Scientists are turning to some very powerful technology to track an asteroid that could crash into Earth. The James Webb telescope ... This can provide more evidence as to whether the comet ...