Russian researcher arrested after “stabbing colleague” at remote Antarctic station
The wounded man was sent to Chile but is not in a serious condition
NASA will keep trying to revive the silent Mars rover Opportunity through January
"NASA will continue its current strategy for attempting to make contact with the Opportunity rover for the foreseeable future"
US Marines want non-lethal laser weapon that shouts at people a kilometer away
The laser could be tuned and scaled to produce a feeling of intense, unbearable heat on human skin without causing lasting harm
