There is evidence that black holes could be used for space and time travel.
There is evidence that black holes could be used for space and time travel. Black holes are areas in space where space-time is warped due to gravity being quite dense. They form when a star dies and explodes. As of right now, black holes can not be used as wormholes but could be used as a gravitational slingshot to help propel a spacecraft through space faster. Black holes can be used as time machines thanks to them being super dense. Hopefully, black holes will be a means of space-time travel in the future when our technology becomes better.