A glass bead retrieved by China's Chang'e-5 lunar mission is offering a glimpse into the moon's hidden interior and violent past. Witness live views of Earth from the International Space Station as it ...

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

One set of dots had matching colors and brightness. open image in gallery Is there a possible ninth planet in our solar system? Researchers say they may have found a candidate (Credit: ESO/Tom ...

There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as number nine in 2006. Now, a group of international researchers say they may ...

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.

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 ...

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 ...

The best telescopes allow you to observe the night sky in more detail — view our solar system and deep space ... Bring the Moon and planets into closer view, spot stunning star clusters and ...

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 ...