Scientists are closer than ever to harnessing fusion power — the same process that powers the sun — by essentially making a small star here on Earth. Fusion could give humanity its best shot at solving the climate crisis, but the technology has yet to be perfected and would require billions more in investments. Is it worth the bet? For more, go to http://vox.com/unexplainable It’s a great place to view show transcripts and read more about the topics on our show. Also, email us! unexplainable@vox.com We read every email. Support Unexplainable by making a financial contribution to Vox! bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices