Looking at a distant galaxy means looking back in time.

The Milky Way is a spiral galaxy and our Solar System is about half-way along one of its arms. Our Sun orbits the centre of the Milky Way at about 140 miles every second. It takes about 230 ...

Our solar system resides in a galaxy called the Milky Way, stuffed with between 100 billion and 400 billion other stars, many of them with planets of their own Every star that you see in the sky ...

We now know that black holes occur frequently throughout the universe. One Sagittarius A* sits at the center of our galaxy, ...

The first rocky planet ever spotted orbiting a burned out star called a white dwarf offers a glimpse of what may be in store ...

Nothing in our ... solar system began as a spinning mass of gas and dust that eventually coalesced into a star and planets. Along the way, angular momentum ensured it never stopped spinning. But a ...

"Even though our galaxy, as well as the Andromeda galaxy, has 100 billion stars in it, they're very far apart." Not only will the solar system survive, but Earth will see a spectacular show as the ...

Astronomy and astrophysics are the study of objects and phenomena that are found beyond our solar system. This combines ... diversity and complexity of galaxy morphology in our local Universe ...

Astronomers have spotted the biggest pair of black hole jets ever seen, spanning 23 million light-years in total length. That's equivalent to lining up 140 Milky Way galaxies back to back.

"This pair is not just the size of a solar system, or a Milky Way ... The observations pinpointed the home of the jets to a ...