The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Dune filmmaker, Denis Villeneuve, opens up about his grief following the passing of David Lynch. Read his full comments here.

Titan is the only moon in our solar system with a significant atmosphere. Now we have a very good idea of how this dense ...

But as far as we know, no other bodies in the solar system exhibit ... But without any other nearby planets exhibiting plate tectonics to compare Earth's system to, it's hard to know precisely ...

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

Now a recent Florida Tech graduate, she leaves with not only a dual degree in planetary science and astronomy and astrophysics but with published research, too. She mapped our solar system's ...

It is also the only moon in our solar system that has a significant atmosphere. For the SwRI and Carnegie experiments, the scientists set out to better understand how Titan maintains its thick ...