Astronomers used the NASA/ESA Hubble Space Telescope to analyse light from the nearby star TRAPPIST-1 as it passed through the atmospheres of four Earth-sized planets in the star’s habitable zone — the region at a distance from the star where liquid water, the key to life as we know it, could exist on their surfaces. The astronomers were looking for the signatures of certain gases, including hydrogen, in the atmospheres that were imprinted on the starlight
This image shows the galaxy Messier 94, which lies in the small northern constellation of the Hunting Dogs, about 16 million light-years away.
This mosaic image of the magnificent starburst galaxy, Messier 82 (M82) is the sharpest wide-angle view ever obtained of M82. It is a galaxy remarkable for its webs of shredded clouds and flame-like plumes of glowing hydrogen blasting out from its central regions where young stars are being born 10 times faster than they are inside in our Milky Way Galaxy.
This composite image, created out of two different pointings from Hubble, shows the barred spiral galaxy NGC 1512 (left) and the dwarf galaxy NGC 1510 (right). Both galaxies are about 30 million light-years away from Earth and currently in the process of merging