What: A newly identified star system, Gaia GIC1, exhibits unusual brightness variations consistent with a large planetary collision Guests: SETI Live host and astrophysicist Dr. Moiya McTier spoke ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Pluto landed its largest moon, Charon, with a 'kiss'—overturning ...

Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

A new Durham University study has found that a giant impact may not be responsible for the formation of Jupiter's remarkable "dilute" core, challenging a theory about the planet's history. Jupiter, ...

The formation of Mercury remains an unsolved mystery. The planet closest to the sun has a disproportionately large metallic core—accounting for about 70% of its mass—and a relatively small rocky ...

How did Pluto and its largest moon, Charon, form? This is what a recent study published in Nature Geoscience hopes to address as an international team of researchers led by the University of Arizona ...

Pluto and Charon’s meet-cute may have started with a kiss. New computer simulations of the dwarf planet and its largest moon suggest that the pair got together in a “kiss-and-capture” collision, where ...