Using an icebox-like instrument nicknamed Himalaya, an Indian-origin researcher-led team has revealed that fluffy ice on the surface of a comet would crystallise and harden as the comet heads toward the Sun and warms up.
A meteor shower is truly a celestial delight to watch. A meteor basically refers to a bright trail of light that appears in the dark sky when a tiny chunk of space debris heats up and burns due to friction caused by the earth’s atmosphere.
A new study of observations from NASA`s Wide-field Infrared Survey Explorer (WISE) has revealed that most centaurs - the small celestial bodies orbiting the sun between Jupiter and Neptune - are actually comets.
Computer models suggest that dust grains grow when they collide and stick together. However, when these bigger grains collide again at high speed they are often smashed to pieces and sent back to square one.