Their research puts more pressure on the International Astronomical Union (IAU) to classify the object as the 10th planet in our solar system. "UB313 is decidedly larger than Pluto," said ...

PASADENA, California (CNN) -- Astronomers announced Friday that an object they discovered in the distant reaches of the solar system is large enough to be the 10th planet -- a claim likely to ...

Astronomers claim they've found the most promising signs of possible life on a planet outside of our solar system.

However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System. The same year that Pluto was ignominiously ...

But turning our nine-planet solar system into eight just earned Pluto more fans. This year also marks the 10th anniversary of Pluto's first dedicated flyby mission. NASA’s New Horizons ...

Celebrate ‘Doctor Who’ on Record Store Day 2025 with this brilliantly-designed release of ‘The Tenth Planet’. The stunning cover art depicts a Cybermen in the shadows, ably demonstrating how haunting ...