Search results: comet

the origin of water on earth has long been one of the most controversial questions in scientific circles.

a space snowball tossed our way from another star system has gone all melty and crumbly.

the hubble space telescope just observed a strange object in the solar system. although the two asteroids move around each other, it carries a number of characteristics such as

swift-tuttle comet with a diameter of 26 km can collide with the earth in 2,400 years, creating the worst genocide disaster on our planet.