Earth, uniquely named after ground and soil, distinguishes itself from other planets named after mythology. Formed 4.5 ...

On Aug. 21, a stellar alignment of planets will illuminate the night sky for the last time until the year 2028 ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

As missions like Kepler and TESS discovered more rocky exoplanets in recent years, scientists looked forward to the launch of ...

Independent previous research has also proposed a similar Planet Y to explain the warp or other features in the TNO ...

Scientists may have found the first planet ever detected around our closest “solar twin,” a star called Alpha Centauri A, the ...

A study published in The Astrophysical Journal reveals that the third planet from the star TRAPPIST-1 does not have an ...

Hundreds of millions of years ago, an asteroid caught by Earth's gravity might have fragmented, creating a temporary ring ...

Our new results provide the strongest evidence yet that at least some Halley-type comets carried water with the same isotopic ...