When the Sun expands into a red giant, it will swallow the inner solar system and raise the temperature in the outer regions.

New research suggests there may be a narrow window of possibility for life to persist on the icy moons of the outer solar system.

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What ...

The sun will eventually become a red giant, engulfing Earth in about 5 billion years. More solar energy hits Earth in one ...

TOI-6894 b, the largest exoplanet relative to its host star yet seen, doesn’t fit the most widely accepted formation model ...

KATY Perry fans were left with their hearts in their mouths after she “almost fell” from a giant ball while on stage. The pop ...

Find out about the latest happenings in the world of entertainment, and also learn from experts about: relationships, ...

There will be several chances to see the shadow of Saturn's largest moon, Titan, pass across the ringed planet's Earth-facing ...