Tiny crabs and other sea life live next to a hot hydrothermal vent on the ocean's floor.

The Ocean Vents Where Life on Earth Likely Began

In a recent paper, biologists outlined a three-part hypothesis for how all life as we know it began.
Total solar eclipse, May 29, 1919, at Sobral, Brazil

Total Solar Eclipse, 2024 Edition

A total solar eclipse crosses North America on Monday, April 8. Be prepared!
Astronomical diagram of the seasons and signs of the zodiac, c. 1860

Earth Isn’t the Only Planet With Seasons

But they can look wildly different on other worlds.
Flag of the Chinese Empire under the Qing dynasty (1889-1912)

Dragon Swallows the Sun: Predicting Eclipses in China

China had a long history of astronomy before the arrival of Europeans, but the politics of absolute rule led to the eventual embrace of Western methods.
The eclipse of Agathocles

How Astronomers Write History

Scientists’ approach to dating past eclipses changed when they stopped treating classical texts as authoritative records.
Artist's impression of ʻOumuamua

Why Interstellar Objects Like ʻOumuamua and Borisov May Hold Clues to Exoplanets

The detection of two celestial interlopers careening through our solar system has scientists eagerly anticipating more.
Total solar eclipse, May 29, 1919, at Sobral, Brazil

Bridging The Gap of War: Einstein’s Eclipse

Astronomer Arthur S. Eddington argued that astronomy should be above politics, even when politics leads to world war.
Andromeda Galaxy

100 Years after the “Great Debate”: How Edwin Hubble Expanded the Cosmos

In 1924, Edwin Hubble found proof that the Milky Way isn't the only galaxy in the Universe.
Anaxagoras

Anaxagoras and the Eclipse: The First to Get It Right

Scholars sometimes credit Thales or Empedocles of Acragas with the first correct theory of solar eclipses, but it was Anaxagoras who had the science right.
A deep image from the Dark Energy Survey showing the field covered by one of the individual detectors in the Dark Energy Camera.

Astronomers Use AI to Shed Light on Dark Energy

A new measurement offers insights on the density of the mysterious force driving the Universe’s expansion.