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

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 ...

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 ...

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 ...

For nearly a decade, scientists have been on the hunt for Planet Nine – a hypothetical celestial object on the edge of our Solar System ... does not exist at all. Article continues below ...

In 2005, thanks to Michael Brown’s scientific antics, Pluto was removed from the list of planets in the solar system. In 1968, the Apollo 8 mission flew around the moon. In 2001, Chris Hadfield became ...

Venus will partner up with the giant planets Saturn and Neptune to form a line up in the pre-dawn sky on May 8, with ...

Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about ...

The concept of planetary order dates back to ancient civilizations and scientific revolutions. But a modern system with seven ...