In the summer, the much warmer air mass expands like a dome and causes the troposphere to reach a height of 11 miles above the surface. This is why clouds tend to grow bigger and taller in the summer ...

The Parker Solar Probe, designed, built, and operated by the Johns Hopkins Applied Physics Lab, captured the images during ...

Earth system scientists developed the planetary boundaries framework for measuring and tracking the stability and resilience of the Earth system.1 The framework quantifies safe boundary levels for ...