Scientists have detected 5 supermassive black holes previously clouded from view. The research suggests there are millions more hidden black holes out there.
People around the world rely on groundwater for drinking and crop irrigation. But a new satellite data study says that many of our biggest aquifers are overstressed.
A new theoretical model focuses on the spiral arms now known to exist around some young stars. The spiral arms may enable rocky planets like Earth to form.
Ken Christison caught Mercury in the east before dawn this week. He couldn't see it with the eye that day, but you might see it, if you look. Here's how.