The intrepid mapping mission has collected more than three trillion observations that'll change the way we see our neck of ...

The Milky Way is our galactic home, but just how big is it?  Dive into this fascinating exploration of the galaxy's size, scale, and structure. Get ready for an astronomical perspective on our place ...

Yale researchers among those who discovered three “ultra-massive” galaxies, which were formed shortly after the Big Bang and ...

But the state-of-the-art space observatory has recently imaged two grand design spiral galaxies, and one appears to be the ...

Spur and gap features seen in Milky Way’s GD-1 stellar stream could be caused by a self-interacting dark matter subhalo. New research points to a dark matter subhalo as the architect behind the unique ...

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

Looking at a distant galaxy means looking back in time.

By reconstructing stellar orbits using real Milky Way stars with accurately determined parameters, the team quantified the galaxy's mass-weighted chemical abundances and age structure. This ...

Scientists have found the beginnings of a young universe that may offer insights into the beginnings of our own Milky Way Galaxy. Geoff Bennett and Miles O'Brien discussed why scientists are ...

The Milky Way galaxy, Andromeda, and all our respective ... a cosmic structure of mind-boggling size whose common gravitational center is known as the Great Attractor. With its combined mass ...