Millions of asteroids are floating in space in the massive expanse between Mars and Jupiter, thousands of which are close enough to our planet to be deemed "near-Earth asteroids." While the majority ...

Naturally occurring superheavy elements beyond those listed in the periodic table could potentially explain why asteroid 33 Polyhymnia is so dense, new research suggests. When you purchase through ...

Add Yahoo as a preferred source to see more of our stories on Google. Black hole, dark matter, periodic table of elements Photo illustration by Salon/Getty Images When wading into the murky realm of ...