Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.

Called Kepler-51, the Sun-like yellow dwarf star was found in 2012 to have three exoplanets in its orbit; each, it would turn ...

Many stars in our galaxy exist in pairs. Now scientists are finding clues that our Sun may once have had a companion of its ...

The Sun, the planets, and all else that constitutes the solar system are hurtling toward the star Lambda Herculis, some 370 ...

NASA's James Webb Space Telescope has captured a unique image that revealed 44 individual stars in a galaxy 6.5 billion light ...

The extraordinary images -- taken with NASA's James Webb Space Telescope -- show a galaxy that glitters with 10 distinct star clusters that formed at different times, much like our own Milky Way.

Looking at a distant galaxy means looking back in time.

shows a black hole at the center of our Milky Way galaxy. The Milky Way black hole is called Sagittarius A*, near the border of Sagittarius and Scorpius constellations. (Event Horizon Telescope ...

NEW YORK — Scientists have spotted what appear to be two stars whipping around each other near the supermassive black hole at the center of our Milky Way galaxy ... the system just in time.” ...

Astronomers have made a groundbreaking discovery: a binary star orbiting perilously close to the supermassive black hole at the center of our galaxy, Sagittarius A*. This stellar pair defies ...

We know that interstellar objects occasionally visit our solar system ... bodies might escape a solar system and how they would then move through the Milky Way. While it is always possible ...