Did you know our solar system might have had an extra planet? Scientists believe a mysterious ninth planet once existed but ...

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home. The solar system is our cosmic neighborhood, made up of ...

Pluto was reclassified as a dwarf planet in 2006. Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar ...

For years, astronomers have been searching for a ninth planet in our solar system (after giving Pluto ... to know that there is a real planet out there still to be found,” Brown said at the ...

Astronomers using the James Webb Space Telescope have directly detected the faint glow of a planet that’s colder than any ...

But it hasn't been directly spied, and scientists say more research is needed to be sure it's out there and ... how conditions beyond our solar system may yield planets vastly different from ...

The discovery of this new, farther-out super Earth is even ... more stringently with KMTNet data." Our solar system consists of four small, rocky, inner planets (Mercury, Venus, Earth and Mars ...

Researchers created solar cells made out of simulated Moon dust ... formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures ...

Once the quirky underdog of our solar system, Pluto held planetary ... comeback story waiting to happen? To find out how Pluto became the official planet of Arizona check out this episode of ...

With a lot of talk about space recently, have you ever wondered which are the hottest planets in the solar system? You'd think ... 36 million miles away from our shining star.