Our Sun’s outer atmosphere, the corona, is millions of degrees hotter than it should be, and no one knows why.

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." When you purchase through links on our site, we may earn an affiliate ...

Forbes contributors publish independent expert analyses and insights. I write about the economics of AI. On paper, the global solar industry has never looked stronger. The International Energy Agency ...