U.S. Physicist: Alien nuclear bomb wiped out Mars civilisation, Nov 2014, UFO Sighting News.

News Source: http://www.digitaljournal.com/news/odd%20news/us-physicist-alien-nuclear-bomb-wiped-out-mars-civilization/article/416731
PDF Science Article: http://journalofcosmology.com/JOC24/Brandenburg.pdf

Digital Journal states:
A U.S. physicist claims evidence that an ancient Mars civilization was wiped out by nuclear bomb-armed aliens. He warns that evidence of a past nuclear attack on Mars raises concerns about a similar attack on Earth.

Dr John Brandenburg, a plasma physicist, obtained his PhD from the University of California, Davis. He is an expert in propulsion technologies and a former consultant on Space Missile Defense and Directed Energy Weapons. He currently conducts research work at Orbital Technologies in Madison Wisconsin.

Brandenburg is scheduled to present on Saturday, at the 2014 Annual Fall meeting of the American Physical Society Prairie Section in Monmouth, Illinois, the astounding theory that a nuclear bomb wiped out an ancient Mars civilisation. (More at source).