Opinion
Veritasium on MSNOpinion

Planet 9 has never been seen, but scientists say the math is clear

Astronomers studying the outer solar system say the unusual alignment of distant objects points to the influence of Planet 9. Mathematical models suggest the odds of this pattern occurring by chance ...
AstroKobi on MSN

The newest evidence for Planet 9

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 ...
CNN

Scientists have fiercely debated the existence of ‘Planet 9’ for a decade. Some say evidence is piling up

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Our solar system ...