Could microorganisms be good analogs to life on Mars and other planets?
Brian Hedlund and Ariel Friel collect microbes living for tens of thousands of years in the subsurface of the earth. By studying these microorganisms, they hope to gain clues about potential life on Mars and other planets.
Alchemy and Science: Fantastic Beasts’ real-life connection to a 14th century Parisian scribe05:10
Could this cosmic interloper be an alien spacecraft? Neil deGrasse Tyson isn’t so sure03:52
'A bumpy ride ahead': Astronomer Martin Rees on humanity's chance of surviving the 21st century03:48
The search for alien life in Nevada05:09
'First Man's' portrait of Neil Armstrong gets at the man behind the myth05:14
Can a virtual reality game help astronauts cope with the journey to Mars?04:30