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

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

The universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous—and highly ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

New ground- and space-based infrared observations are giving astronomers a better handle on the true populations of red ...

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 ...

One of the first constellations amateur astronomers come to recognize, the Queen offers observers many worthy sights.

Astronomers have made new discoveries about young star formation in the Large Magellanic Cloud (LMC), using the James Webb ...

Leo P, a small galaxy and a distant neighbor of the Milky Way, is lighting the way for astronomers to better understand star formation and how a galaxy grows. Scientists have reported finding that Leo ...

Looking at a distant galaxy means looking back in time.