A team of researchers has found an unusual spike in beryllium-10 levels in the Pacific seabed, dating back 10 million years.
New research suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for photosynthesis.
Astronomers have detected an exoplanet just twenty light years away that's residing in its star's habitable zone.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback