Curiosity drives much of our learning and creativity. Where do we get it from, and how does it change our brains? Plus, the NASA Eclipse Ballooning Project hopes to livestream the solar eclipse from weather balloons across the country. And scientists still do not know when or why the moon lost its magnetic field, but it was at least a billion years later than they thought.

Just three weeks remain before the total solar eclipse. Are you ready?

The solar eclipse provides an opportunity for scientists to study the solar atmosphere and polar plumes. Plus, in the driest deserts, hardy bacteria cling to the underside of translucent rocks, eking out an existence where nothing else can.