Mercury is the smallest planet in our solar system. Explore its size, extreme temperatures, core structure, and comparison ...

A new study analyzes three asteroid and two meteorite samples to see if space rocks smacking into Earth could’ve helped ...

The UK insurance market could propel the British space industry to the fore. Will we fire up those boosters, or let others ...

Astronomers have uncovered a distant planetary system that flips a long-standing rule of planet formation on its head. Around the small red dwarf star LHS 1903, scientists expected to find rocky ...

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

Their observations of a faint, cool M-dwarf star called LHS 1903 revealed a system with a rocky world at its outer edge. LHS ...

Scientists discover a 21-million-year-old dwarf sea cow that grazed in the Arabian Gulf, revealing how it transformed marine ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

Astronomers have reported one of the longest stellar dimming events ever recorded, with a Sun-like star fading by 97 percent for nearly 200 days. Astronomers believe one of the longest stellar dimming ...