One of the most cherished science fiction scenarios is using a black hole as a portal to another dimension or time or universe. Is it possible? Maybe. But choose carefully. All black holes are not created equal.
2019 EarthSky Fundraiser
Hello, friends of the Earth and sky! We need you and your support to keep going.
Would you consider
donating?
If you've already donated, we apologize for the popup and greatly appreciate your support.