Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is suspected to be causing unusua ...

Scientists have recently unveiled a remarkable discovery in the outer reaches of our solar system: a space fossil located 4 ...

Planet Y is the latest in a series of hypothetical solar system planets that scientists have proposed in recent years, all with slightly different characteristics, but collectively believed to be ...

Astronomers have identified a small but significant possibility that a Neptune-sized planet is quietly orbiting within the ...

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on ...

It is a question that feels like it should have a straightforward answer: how many planets are there in our solar system? Since Pluto was relegated back down to dwarf planet status, almost everyone ...

Last month, Google quietly killed off Google Sky Maps. But there’s still another way to virtually explore most of the solar system a la Google Maps: it’s called Google Maps in Space. Google Maps in ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be confused for Mars. The alluvial basin is full of tan and gray regolit ...

Two bright green comets streamed through the skies this month and were visible to skygazers in the Northern Hemisphere, ...

While the Orionids aren’t the most prolific meteor shower of the year, they are incredibly fast movers. They enter the ...

In an ancient star system expected to be stable and dormant, scientists found a 3 billion-year-old white dwarf star still ...

The solar system is a collection of celestial bodies held together by the sun's gravitational pull. Our solar system is located in the Milky Way galaxy. The solar system consists of eight planets, ...