Smithsonian Magazine on MSN

Astronomers Say Earth Has a Newly Discovered ‘Quasi-Moon,’ a Companion That Shares Its Orbit Around the Sun

Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without being gravitationally tied to Earth ...
Earth.com

Newly discovered dwarf planet could be the missing piece in the solar system puzzle

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.
The New York Times

Earth’s Fall Equinox Ushers In Astronomical Autumn

During an equinox, places around the globe experience nearly equal amounts of daytime and nighttime. The second occurrence this year happens on Monday. By Katrina Miller Sept. 19, 2025: This article ...

White nights – neither sun rises nor sets: Shubhanshu Shukla shares surreal experience of the International Space Station

Astronaut Shubhanshu Shukla, India's first on the ISS, experienced 'white nights' during the Axiom-4 mission, where the sun never fully set. This phenomenon, caused by the station's beta angle, ...