A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show.

The flares may heat up and inflate the planet's atmosphere, which is dominated by hydrogen and helium. Being lashed by these ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

A wandering star from the depths of the galaxy could disrupt the orbits of the planets, fling Earth out of the solar system – and end humanity.

The clingy planet orbits so close to its star, it triggers powerful explosions of radiation that eat away at its atmosphere.

A meteorite, Northwest Africa 12264, is questioning the established timeline of our solar system's formation, suggesting ...

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...