The Pandemic's Next Effect: A Giant Wave of Disabling Grief

New kinds of flame retardants can accumulate in orcas and even be passed to their nursing calves, scientists reported Wednesday, and it’s not yet clear what implications this has for the health of the animals.

First images from China's Mars rover Zhurong released.

Deep water on our solar system's ice giants and some exoplanets may be magnesium-rich. Study shows high pressure and contact with some minerals would make oceans rich in magnesium.