About 50 light-years from Earth, a gas giant about half the mass of Jupiter orbits a sunlike star. The discovery of Pegasi 51 b ushered in a new era of exoplanet research.

The interstellar comet 3I/ATLAS has a thick irradiated crust that no longer resembles its home star system, simulations and ...

Astronomers have identified Comet 3I/ATLAS as an interstellar object, making it only the third confirmed visitor from outside our solar system, according to NASA.<br /><br />The comet is travelling on ...

Why do all planets in our solar system orbit the Sun the same way? This documentary unravels the cosmic forces, from the ...

When evaluating possible planets out of the thousands out there, explained Prof. Bean, scientists look for liquid water as a ...

Study discovered that Chiron, a small icy world between Saturn and Uranus, is forming rings. This shows how small worlds ...

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

A new study reveals that the asteroid belt is slowly disappearing, offering insights into its long-term fate and what this means for our solar system.

The company Reflect Orbital plans to deploy a constellation of orbital mirrors designed to reflect solar light toward Earth ...

The interstellar comet 3I/ATLAS will make its closest pass to the sun on Oct. 30, and various spacecraft will be watching, ...

New strategies may soon allow scientists to test dark energy theories within our own solar system, linking cosmic-scale physics to local observation. Science advances through a cycle of proposing ...

Three interstellar objects; ʻOumuamua, 2I/Borisov, and 3I/ATLAS—have passed through the Solar System. This article details ...