How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in elliptical trajectories, and they are all different in size, composition, ...

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 ...

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 ...

A unique new material that shrinks when it is heated and expands when it is cooled could help enable the ultra-stable space ...

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 ...

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.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show. Close. Advertisement.

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.

After dusk on Friday night, seven planets are expected to align in the night sky. But you'll need binoculars or a telescope to see them all.

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 light-years from Earth. CNN values your feedback 1.