Astronomers used data from NASA's Great Observatories, which enabled them to carry out a detailed study of a large young galaxy cluster and they even weighed the mass of the galaxy.
A team of Australian and American researchers have discovered a distant, ancient cloud of gas, which likely contains the elements from the very first stars that formed in the universe.
Scientists may have gotten a glimpse of what life is like on other planets.
The Hubble Space Telescope has spotted an ancient globular cluster 22,000 light-years away in the constellation of Serpens (The Serpent).
Globular star clusters can hold a million stars in a ball that's only about 100 light-years across on average. Now, though, scientists have found that these clusters may be good places to look for space-faring civilizations.
The NASA Cassini Spacecraft has captured three Saturnian moons in just one image.
An astrophysicist has discovered a galaxy with two black holes in which one of them is starved of stars, which is rare since black holes usually contain numerous stars.
The Mars rover Curiosity made discoveries after it's conducted its first ever up-close study of extraterrestrial sand dunes
How are asteroids and planets formed from stony particles? Scientists are now taking a closer look at this question in a new experiment that uses beads made from a special type of glass.
The Wide Field Planetary Camera 2 on the Hubble Space Telescope has captured the image of two merging galaxies, which are in the process of becoming one galaxy.
Space and astronomy had some of the most interesting discoveries in 2015. Here are some of interesting astronomical discoveries and observations during 2015.