What happened when one twin went to space and the other stayed home?

Rex/AP

By Chelsea Whyte

NASA astronaut Scott Kelly spent a 12 months in arena and came wait on a rather modified man – on the least, when put next to his twin brother Tag, who used to be earthbound while Scott used to be aboard the Global House Arena. This experiment, performed from March 2015 to March 2016, will wait on us belief for astronauts to commute for years to Mars or previous.

Scott and Tag (himself a dilapidated astronaut) both gave NASA scientists samples of their blood, urine and faeces sooner than, for the length of and after the 12 months-prolonged flight …