"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that ...

Hubble's discovery of expanding galaxies confirmed the universe's vastness, laying the foundation for the Big Bang theory and ...

A Triple Star System Yields an Unusual Surviving Star Unlike our Sun, which exists alone, at least half of the stars in our ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

Now, NASA's Hubble Space Telescope and MAVEN (Mars Atmosphere and Volatile Evolution) missions are helping unlock that mystery. "There are only two places water can go. It can freeze into the ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The mystery of the Hubble tension has deepened with the startling finding that the Coma Cluster ...

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 ...

Could time itself actually explain our universe's expansion? Our current cosmological model—known as lambda cold dark matter, ...

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 ...