... to form a long, comet-like tail that stretches into space. In 2021, astronomers led by the University of Warwick discovered chemical signatures in the atmosphere of the planet as it passed in front of its star (a transit). The research concluded tha ...

... to form a long, comet-like tail that stretches into space. In 2021, astronomers led by the University of Warwick discovered chemical signatures in the atmosphere of the planet as it passed in front of its star (a transit). The research concluded tha ...

Astronomers have found that interstellar gas in the Milky Way often has low amounts of chemical elements. The believe this may due to cosmic gas that falls into the Milky Way in the form of high-velocity clouds with low numbers of heavy elements in t...

Astronomers have found that interstellar gas in the Milky Way often has low amounts of chemical elements. The believe this may due to cosmic gas that falls into the Milky Way in the form of high-velocity clouds with low numbers of heavy elements in t...

... period, in the form of comets or water-rich, chondritic meteorites. It is most likely that both processes contributed - the chemical make-up of the water found in comets and asteroids differs from that found in our oceans, so impacts alone are an un ...