Planet 9 is a hypothetical world thought to orbit far beyond Neptune, proposed to explain strange patterns in the movement of ...

Astronomers have discovered icy rocks in the outer solar system that challenge the known laws of physics, suggesting the existence of a ninth planet. This video features an interview with the lead ...

The latest finding offers "a window into the dark universe,” said one of the researchers behind the groundbreaking discovery.

Planet Labs strengthened its balance sheet considerably, ending the quarter with $677.3 million in cash, cash equivalents and short-term investments, up 180% from the previous year. The company ...

A brilliant point of light is rising in the eastern sky soon after dark this month, drawing comparisons to the "Star of Bethlehem." When you purchase through links on our site, we may earn an ...

At 9 months old, babies really start to show their personalities as they rapidly develop and prepare to become toddlers. This makes playing with them so fun—every day they discover something new. As I ...