First device to monitor transplanted organs detects early signs of rejection

A device on NASA's Perseverance rover generated enough oxygen on Mars for a small dog to breathe for 10 hours. Astronauts could be next.

Is Your Partner A ‘Serial Cheater’? How To Spot The Signs

Scientists Cryopreserve and Revive Coral Fragments in a World First for Conservation. The new freezing technique could reinvigorate corals suffering from warming oceans—or even preserve human organs in the future.