The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...
Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...
Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...
On February 28, 2025, a rare planetary parade will occur, with all seven solar system planets aligned on one side of the Sun.
A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...
And we're asked to vote on this word that’s not really part of our wheelhouse," he said, adding he voted against the de-classification. But turning our nine-planet solar system into eight just earned ...