Via IFLScience.com Iridium, a metal associated with the asteroid that ended the Cretaceous era can act like a stealth bomb, entering the nucleus of a cancer cell. When hit with a burst of light, it causes nearby oxygen molecules to become reactive, killing the cell. Whether this can be turned into a viable mechanism for fighting cancer in living things […]

Read part 1 here: After 21 more years of study, one of these authors, the late Sylvan Wittwer, (who passed away in 2012 at the age of 95) reiterated the fact that there were benefits to the increase in atmospheric carbon dioxide. But then he went on to say something else very interesting. He, along with co-author Emeritus Professor of […]

Via ABC Science: The Rosetta spacecraft has detected significant levels of molecular oxygen coming from Comet 67P/Churyumov-Gerasimenko in a discovery that has taken astronomers by surprise. [pullquote]”This is the first comet that we’ve found which has molecular oxygen.”  -Dr André Bieler[/pullquote] The discovery, reported in the journal Nature, may provide new clues about the conditions and environment where the Earth, […]