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.
A new research has suggested that icy comets that crashed into Earth millions of years ago could have produced life building organic compounds, including the building blocks of proteins and nucleobases pairs of DNA and RNA.