A photo shows an oil rig located in a neighborhood in Los Angeles. In the foreground is a sign for a city park.

Black, Latinx Californians face highest exposure to oil and gas wells

a flattened rock surrounded by mist, with sun on right

Surprisingly simple explanation for alien comet ‘Oumuamua’s weird orbit

 dozens of protein strands balled up

Can synthetic polymers replace the body’s natural proteins?