On Aug. 12, 2045, the longest total solar eclipse of this century in North America will occur across 15 U.S. states, with an estimated 91 million experiencing totality.

Lithium has long been known to be rare in the cosmos. But astrophysicists are still puzzled over why it's so much less abundant than predicted by big bang cosmology.

Completions increased 14.3% to 8,749 properties during the 12 months to July. Meanwhile, average asking prices rose to ...

The Northern Lights may be visible in U.S. states after space weather experts at NOAA forecast geomagnetic activity.