Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...

The ice giant, now missing, may have disrupted some of the moons of Uranus and Jupiter.

(Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else ...

A multi-institutional team of astrophysicists headquartered at Boston University, led by BU astrophysicist Merav Opher, has made a breakthrough discovery in our understanding of the cosmic forces that ...

Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...

Understanding how the Sun and its activity impact Earth and the solar system is important because solar storms affect the technology we use on Earth and in space. Now, a team of heliophysicists and ...

It may not feel like it, but everything in the universe is in constant motion. Our Sun, with all its planets, orbits the center of the Milky Way, flying through the cosmos at around 450,000 miles per ...

The Solar System is the name given to the part of space that surrounds the Sun. Even though it is bigger than anything we can imagine, the Solar System is actually a very tiny part of the universe.

Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but are unlike any in our own solar system. The two exoplanets, or planets outside of our solar ...