Sending humans to Mars is easy, except for the parts about getting there, landing safely, and surviving on the surface. That’ll take lots of science.

Readers wrote in about the need for more direct climate reporting and the shift in social consciousness since the days of Woodstock.

Readers wrote in about the need for more direct climate reporting and the shift in social consciousness since the days of Woodstock.

Scientists at Yale University have found that quantum jumps are not as instantaneous or as unpredictable as scientists previously thought.