"What is better, planting trees or covering the same area of land with solar panels? A group of geoscientists from Israel just looked a...

"In this month's Lightning Round video, I answer a couple of questions about life in the universe, both how close we are to finding...

"Solar power is a nice idea. Except for the issue with the clouds. And the nights. So, how about we instead put solar panels up in spac...

"- - - imagine if one political party claimed that astronomers were exaggerating the risk to secure funding, that those who believed t...

 "A provocative recent essay in Nature Energy by two solar analysts, Varun Sivaram and Shayle Kann, argues that solar still has som...