Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

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

With a diameter about twice that of Jupiter, HAT-P-67 b is the widest planet that astronomers have discovered so far. It was found in 2017 at about 1,212 light-years from Earth, but its mass is ...

Neptune, the smallest of its four gas planets, has a diameter of about 30,600 miles (49,250 km), roughly four times that of Earth. The newly discovered sub-Neptunes range from 1.9 to 2.9 times ...

Astronomers have confirmed the existence of four planets orbiting a star less than 6 light-years away with help from some of the world's most powerful telescopes.

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.

To observe the planets, you do not need a telescope greater than 4 -inches in diameter. A suitable pair of binoculars (in the range of 7 X 50 to 10 X 50) will be enough. These are great choices ...

Is there life on planets other than Earth? For generations, scientists have puzzled over the question, searching for planets that might have the right conditions both inside and outside the Milky Way.

Jupiter and Venus will appear very close together in the night sky on Wednesday, with the two planets set to pass each other in what’s known as a conjunction.