Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

For years, astronomers have been searching for a ninth planet in our solar system (after giving Pluto ... “It’s motivated us a lot.” As with all Planet 9 research, the findings have been ...

But do other planets have seasonal patterns, too? Indeed, other planets, dwarf planets and moons in our solar system do have seasonal ... no seasonal change at all," Byrne said.

Explore the hypothetical existence of parallel planetary systems. Sonia Sotomayor Gives Conservative Justices a Win in Supreme Court Case 9 Things Plumbers Say You Should Never Pour Down the Drain ...

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 system was touted more than a century ago. But ...

Most astronomers agree that life is likely common throughout the universe. While Earth is the only world known to have life, ...

but both men previously suggested a “Planet X” existed in the far reaches of the solar system. “It’s kind of fun that a paper that purports to find a candidate for Planet Nine is really ...

They reveal a whole new level of detail in these planet-forming systems. Breakthroughs, discoveries, and DIY tips sent every ...

The ongoing search for an additional planet at the solar system's edge has identified a ... that would basically prove that we were wrong all along," Science quotes him as saying.