It's Earth Day! To celebrate we rounded up the best pictures of our beloved planet. From the first one taken in 1946 to the ...

If you follow space news, then you've likely seen some of the stunning images of Earth as it appears from space. Sometimes these pictures are taken by spacecraft — like the famous pale blue dot photo ...

This Earth Day, we reflect on our home planet and look at Earth from space through history.

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

NASA’s TESS uncovers 11,554 exoplanet candidates in the T16 planet hunt, including more than 10,000 new ones around faint ...

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For centuries—and, frankly, until quite recently—astronomers were baffled by planet formation. They saw points of light in the sky moving in a neat, orderly fashion, but many crucial details about how ...