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

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.

Astronomers have spotted a cosmic mismatch that has left them perplexed - a really big planet orbiting a really small star. The discovery defies current understanding of how planets form.

Giant planets are not rare per se — after all, we have four in our own solar system. Such large worlds are, however, rarely found around the smallest stars, red dwarfs. Red dwarfs simply shouldn't ...

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

Astronomers confirm TOI-5573 b, a rare, miniature Saturn-like planet orbiting a small star, challenging theories of planetary ...

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

Star TOI-6894 is just like many in our galaxy, a small red dwarf, and only ~20% of the mass of our sun. Like many small stars, it is not expected to provide suitable conditions for the formation ...

Well, tell that to the red dwarf star TOI-6894, which is located 238 light-years away. It has just 20% of the mass of the sun, but has been found to host a giant planet, TOI-6894b, that's a little ...

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