Editing Interstellar travel (section)

==== Artificial black hole ====

{{Main|Black hole starship}}
A theoretical idea for enabling interstellar travel is to propel a starship by creating an artificial black hole and using a parabolic reflector to reflect its [[Hawking radiation]]. Although beyond current technological capabilities, a black hole starship offers some advantages compared to other possible methods. Getting the black hole to act as a power source and engine also requires a way to convert the Hawking radiation into energy and thrust. One potential method involves placing the hole at the focal point of a parabolic reflector attached to the ship, creating forward thrust. A slightly easier, but less efficient method would involve simply absorbing all the gamma radiation heading towards the fore of the ship to push it onwards, and let the rest shoot out the back.<ref>{{cite arXiv | last1=Crane | first1=Louis | last2=Westmoreland | first2=Shawn | title=Are Black Hole Starships Possible | year=2009 | page=| class=gr-qc | eprint=0908.1803 }}</ref><ref>{{Cite journal |url=https://www.newscientist.com/article/mg20427361.000-dark-power-grand-designs-for-interstellar-travel.html |title=Dark power: Grand designs for interstellar travel |journal=New Scientist |date=25 November 2009 |issue=2736 |last=Chown |first=Marcus |access-date=1 September 2017 |archive-date=26 April 2015 |archive-url=https://web.archive.org/web/20150426175526/http://www.newscientist.com/article/mg20427361.000-dark-power-grand-designs-for-interstellar-travel.html |url-status=live }}{{subscription required}}</ref><ref>{{Cite news |url=http://io9.com/5391989/a-black-hole-engine-that-could-power-spaceships |title=A Black Hole Engine That Could Power Spaceships |first=Tim |last=Barribeau |date=November 4, 2009 |work=io9 |access-date=11 August 2016 |archive-date=22 November 2015 |archive-url=https://web.archive.org/web/20151122040407/http://io9.com/5391989/a-black-hole-engine-that-could-power-spaceships |url-status=live }}</ref>