Billions of years from now, the Sun will swell into a red giant, swallowing Mercury, Venus, and Earth. But that’s not the ...

This down-to-earth beauty is looking for real romance, and these are the sun signs where she's most likely to find it.

A series of studies have cast doubt on the sensational claim that "the strongest evidence yet" was found that life exists anywhere else besides Earth.

But this assumes that nothing affects the Solar System in the meantime, and that is not a certainty. As we travel around the ...

Earth’s sister planet reaches greatest western elongation and dichotomy as the waxing Moon slides along the ecliptic in the ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

Astronomers have spotted a star acting unlike any other ever observed as it unleashes a curious combination of radio waves ...

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

First detected in 2015, gravitational waves may not have had a direct hand in human evolution, but it certainly helped set ...

But new research from the University of Chicago is urging caution. After analyzing data from multiple observations of the ...

A new analysis of planet formation models estimates the odds of a theoretical Planet Nine orbiting our sun at 40% given ...

With an atmosphere, by mass, of primarily hydrogen (76 per cent) and helium (24 per cent), and by volume of 89 per cent ...