In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

While radio jets are relatively common in the nearby Universe, they have been elusive in the early Universe. This is partly ...

The Tarantula Nebula, also known as 30 Doradus, is revealed in an unusual light in this exceptionally deep Chandra X-ray ...

While mapping the nearby universe, astronomers discovered the largest-known structure in the universe, about 425 million to ...

The universe's unexplained phenomena, such as mysterious signals and invisible matter, challenge scientists to uncover deep cosmic secrets.

Enormous Galaxy Clusters Found to be 1.3 Billion Light-Years Wide, Deemed to be The Largest Known Structure In a monumental ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

Ancient ‘white dwarf’ stars explode and die in more ways than was thought, and observing these violent cosmic deaths could ...

A unique dataset of Type Ia supernovae being released today could change how cosmologists measure the expansion history of ...

Humans evolved late in Earth history. While this timing inspired the conclusion that humanlike life is a cosmic improbability ...

Learn about the explosions that often occur at the end of a white dwarf star's life, allowing scientists to study the acceleration of the universe.

Astrophysicists have unearthed a surprising diversity in the ways in which white dwarf stars explode in deep space after assessing almost 4,000 such events captured in detail by a next-gen ...