Mexico, N.Y. – Malaki Sandejas, 8, loves a dwarf planet. Sitting next to his mom on their couch, he rattles off the five in our solar system. “The dwarf planets are Haumea, Makemake, Eris, Ceres and ...

R esearchers looking for objects in the Kuiper Belt – the donut-shaped region beyond the orbit of Neptune containing icy ...

Our Solar System has eight planets, a few dwarf planets and more than 200 moons. But wait. Are you seeing double? Or did ...

If you are going to look for intelligent life beyond Earth, there are few better candidates than the TRAPPIST-1 star system.

Earth may briefly have had a ring system similar to Saturn ’s over 450 million years ago during a period of unusually intense ...

Neil deGrasse Tyson shared exclusively with PEOPLE at the 'Speak No Evil' premiere that former elementary school students are still 'angry' at him as adults for his role in determining what ...

Starstruck Billions of years ago, our Solar System may have had an incredibly close encounter with another passing star. As ...

Starting Saturday, more than 200 new laws will take effect in Arizona. Here’s a breakdown of seven laws about topics from ...

Saturn's moon, Titan, is the only other celestial body we know of where long-lasting reservoirs of liquid pool on the surface ...

Astronomers have uncovered a surprising group of frozen bodies orbiting the Sun, far beyond the Kuiper Belt. Using the Subaru ...

A roundup of the day’s news including local astronomers working with Nasa to find out more about dwarf planet Pluto.

In an eccentric twist, the hot Jupiter spotted in 2005 was found to be in an orbit just over six days long. The recently ...