After nearly a year of waiting for the interstellar comet 2I/Borisov to make its closest pass by the Sun, astronomers were finally able to uncover its composition—and it’s much different than expected.

Until a few weeks ago, the hopes of comet observers and astronomy enthusiasts in general around the world were placed on the comet C/2019 Y4 (ATLAS).

SpaceX has been steadily moving forward with its internet-from-space satellite project—and astronomers are worried the network will hinder space observation.

For the first time, astronomers have detected two black holes with vastly different masses colliding into each other.

The Eagle Nebula's 'Pillars of Creation' is one of the Hubble Space Telescope's most famous images, and NASA just reposted a stunning infrared version.

NASA just unveiled one of its most ambitious plans yet—to build a giant radio telescope in a crater on the moon. The telescope, known as the Lunar Crater Radio Telescope (LCRT), would be 1 kilometer (3,281 feet) in diamet

The comet 2I/Borisov, an interstellar visitor discovered gliding through our solar system back in August 2019, is beginning to break apart.

A team of astronomers has finally discovered definitive evidence of a mid-size black hole—the rarest and most elusive type of black hole.

For the first time, astronomers have captured a rare image of a supermassive black hole devouring matter and spewing out jets of heated plasma.

A team of astronomers at Durham University in the UK have managed to calculate the exact diameter of the Milky Way galaxy—and it’s much bigger than anticipated.

My name is Ernesto Guido, and I’m an Italian amateur astronomer. My main interests lie in the astrometry and physical properties of comets and asteroids.

The supermassive black hole at the center of our galaxy, which is relatively inactive compared to others, has recently been ramping up its activity level.