Blue Planet III builds on the groundbreaking legacy of the previous two series, redefining the realm of possibility in ...

Astronomers have uncovered evidence of a rare second-generation planet orbiting a dead star, suggesting new worlds can form ...

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For centuries, humans have gazed at the stars, trying to understand what lies beyond the familiar planets we know. From Mercury’s blazing orbit near the Sun to Neptune’s icy edge, our Solar System has ...

Planet 9 would fall somewhere in between these categories. It could be what is known as a Super-Earth, a rocky planet larger than our own, or a sub-Neptune, a gaseous world less massive and slightly ...

A study recently submitted to The Astronomical Journal continues to search for the elusive Planet Nine (also called Planet X), which is a hypothetical planet that potentially orbits in the outer ...

An artist's illustration of a possible ninth planet in our solar system, hovering at the edge of our solar system. Neptune's orbit is shown as a bright ring around the Sun. Scientists in Taiwan ...

Satellite-imagery and data-analysis company Planet is restructuring and laying off 117 employees. "This action was taken to increase the company's focus on its high priority growth opportunities and ...

Planet Nine? Jupiter might be the goon of all planets. Its sheer size and gravitational pull likely once threw a planet out ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration showing Planet Nine, a hypothetical, undiscovered planet in our solar system. New research now suggests the ...

This story is part of Short Wave's series Space Camp about all the weird, wonderful things happening in the universe. Check out the rest of the series. If you were born in the last century you might ...