Galaxies are vast gravitational structures that harbor billions to trillions of stars, as well as, interstellar gas, dust, and nebulae as well as the dark matter that binds them together. Our solar ...

NASA's Chandra X-ray Observatory just dropped a new cache of photographs that capture the stunning beauty of different types ...

Galaxies like our Milky Way grew through cascading mergers of smaller galaxies that began billions of years ago. The ancient progenitors of galaxies like ours were small galaxies similar to modern-day ...

Early-type galaxies, encompassing both elliptical and lenticular systems, are characterised by smooth stellar light distributions and a predominance of random over ordered motions. Stellar kinematics ...

Early-type galaxies, encompassing ellipticals and lenticulars, are characterised by smooth stellar light distributions, predominantly old and metal-rich stellar populations, and negligible ongoing ...

A team using the NASA/ESA Hubble Space Telescope has uncovered a new type of astronomical object—a starless, gas-rich, dark-matter cloud that is considered a "relic" or remnant of early galaxy ...

This artist’s illustration depicts a dwarf galaxy that hosts an active galactic nucleus — an actively feeding black hole. In the background are many other dwarf galaxies hosting active black holes, as ...