An artist’s impression of the far-future sun, swollen to become a red giant star, as seen from a molten Earth landscape. As summer settles in and temperatures climb in the Northern Hemisphere, it’s ...

In what we can only interpret as a show of solidarity for the Solar System's beleaguered dwarf planet Pluto, the Sun put its heart prominently on its sleeve atmosphere. On the side of the Sun facing ...

Can life survive in the solar system once the sun dies and becomes a red giant star? New research suggests there may be a narrow window of possibility for life to persist on the icy moons of the outer ...

New X-ray observations reveal Betelgeuse’s mysterious companion is not a collapsed stellar remnant but a young, Sun-like ...