Gaurav Khanna
University of Massachusetts Dartmouth
Latest articles by Gaurav Khanna

Spinning Black Holes Could Open Up Gentle Portals for Hypersonic Spacecraft
By Gaurav Khanna published
Feel like visiting another star system or dimension? You can do this by traveling through a spacetime portal of a black hole. But you better choose carefully. All black holes are not created equal.

Time Travel Is Possible — But Only If You Have an Object With Infinite Mass
By Gaurav Khanna published
Who wouldn't want to travel in time, glimpsing the dinosaurs or peeking at humans 2,000 years from now? Now physicists have designed a time machine that seems deceptively simple.
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