Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised scientists with their unexpected shape. Rather than resembling a ball, ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

From the heliocentric theory to rocket science, these visionaries challenged conventions and reshaped the future.

Astronomers have found a compact solar system whose planets line up in a way that, according to current models, should not be possible. Around the small star LHS 1903, a dense rocky world orbits on ...

In late winter, the zodiacal light is visible in the evening in the Northern Hemisphere (false dusk) and in the pre-dawn ...

New research by Southwest Research Institute (SwRI) and the National Science Foundation's National Center for Atmospheric ...

In the medieval period, when Arabic chroniclers recorded eclipses, they usually noted concurrent deaths of rulers. And in Europe, a solar eclipse in 1133 was so closely associated with the 1135 death ...

Today (Feb. 17), an annular solar eclipse will commence its journey across a remote region of Antarctica where it will be visible to more penguins than people. The partial solar eclipse portion of the ...

Assistant Professor of Applied Mathematics Ashesh Chattopadhyay will build AI models to project extreme Earth-system events.

An annular eclipse swept over a remote corridor of Antarctica on Feb. 17.

Anthropic has unveiled Claude Opus 4.6, introducing a million-token context window and automated agent coordination features ...