Contamination created controversial ‘acid-induced’ stem cells

Stem cells that were claimed to be created simply by exposing ordinary cells to stress were probably derived from embryonic stem cells, according to the latest investigation into an ongoing scientific scandal. How that contamination occurred, however, remains an open question. The investigation was instigated by RIKEN, the Japanese research institution where… Read more“Contamination created controversial ‘acid-induced’ stem cells”


Each year, the Japan Space Elevator Association (JSEA)holds a Climber competition acronymed SPEC (SPace Elevator Challenge) and each year they get more and more ambitious in their goals.  This year they had a 1,200 m long tether held up by balloons.  Climbers are powered by batteries and scores are awarded… Read more“SPEC2014”