Researchers have the clearest-ever picture of the receptor that gives humans the 'high' from marijuana, which could lead to a better understanding of how the drug affects humans.

Space usually seems infinitely vast, but it's feeling a little crowded these days two different crewed missions and two uncrewed missions have just blasted off for their various projects exploring the cosmos.

The batteries in the Samsung Galaxy Note 7 phones are the same kind that's used safely in millions of wireless devices around the world.

Small, hairless, virtually blind and living in crowded underground tunnels serving a queen naked mole rats' lives may sound unpleasant, but theyve got a leg up on humans (and rats and mice): what hurts us doesnt bother the humble mole rat at all.

The American Civil Liberties Union is sounding the alarm on how police monitor social media, particularly during protests, and the Canadian chapter has similar concerns.

Global carbon dioxide levels in the atmosphere have surpassed 400 parts per million, and will almost certainly remain there indefinitely, according to new numbers from the Scripps carbon dioxide monitoring program at the Mauna Loa observatory in Hawaii.

New research has found that bumblebees can have "emotion-like states," which suggests that insects may have more complex brains than previously thought.