Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

The mystery of how planets and icy objects formed in the farthest reaches of our solar system just took an exciting turn. A ...

Exoplanets—planets that orbit stars beyond our solar system—have transformed our understanding of the universe. Since the ...

A new study, however, identifies a possible candidate. A separate team of astronomers compared 1983 data from the Infrared ...

This week, an old astronomical controversy is renewed as researchers present new evidence for a hidden "Planet X" in our solar system.

"How planets are born is an unsolved area of research," astrophysicist Daniel Price of Australia's Monash University told ...

When we think about asteroids that could threaten Earth, we often imagine massive, city-sized rocks hurtling through space. But what if the real danger comes from much smaller, barely detectable ones?

NASA has already found signs of alien life on Mars but is still keeping it secret, a rogue scientist claims. Barry DiGregorio ...

The Sun is the most important star in the entire Solar System, as it is not only the gravitational force around which all ...

Terror attacks, judicial interference and Blue State resistance notwithstanding, Trump Administration and congressional ...

Scientists have found a huge cloud called Eos close to our solar system. Rutgers University astronomers made this discovery.

Indeed, other planets, dwarf planets and moons in our solar system do have seasonal cycles — and they can look wildly different from the ones we experience on Earth, experts told Live Science.