Our sun is a lonely star. At least half the stars in our galaxy have binary companions. This was nicely illustrated in the ...

Hubble and its fellow observatories give us an unprecedented, crystal-clear look at the far reaches of the cosmos. Explore these orbiting pioneers and learn what they've discovered. 3 min read The ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...

With all the excitement over the last few years for the shiny and new James Webb Space Telescope, it’s easy to forget about the grand old master of the space telescopes, Hubble. But although ...

Get ready to celebrate the Hubble Space Telescope's 35th anniversary with a year full of observations. The Hubble Space Telescope is nearing its 35th anniversary and skywatchers can celebrate the ...

Why it's so special: This stunning image from the Hubble Space Telescope depicts a star-forming region called Sharpless 2-106, or S106 for short. Characterized by its "wings," it is classified as ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy NGC 2566, which sits 76 million light-years away in the constellation Puppis. A prominent bar of stars stretches across the ...

The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to ...

New research suggests that a troubling disparity in the rate of expansion of the universe, known as the Hubble constant, may arise from the fact Earth sits in a vast underdense region of the cosmos.