This video breaks down how scientists define planets and why that definition keeps changing. From Pluto’s removal to the ...

According to a new study, the planet is drying at an unprecedented pace, presenting a critical threat to humanity. Researchers found that “continental drying is having profound global impacts” that ...

A parade of planets will stream across the night sky over Michigan later this month and several of Earth's neighbors should be visible to the naked eye. A six-planet alignment, or planet parade, will ...