Ash clouds coming from an active volcano in Russia's far east has forced authorities there to reroute a number of international flights, officials said on Tuesday. No flights have so far been canceled.
NASA on Wednesday said it is eying deep space exploration and will begin with a mission in 2016 that will take samples from a distant asteroid back to Earth.
All five passengers a board a small plane died after the aircraft crashed on railroad tracks in the southern region of the state of Alaska, local authorities said Friday.