Late in the spring of 1991, Soviet cosmonauts Sergei Krikalev and Anatoli Artsebarski, along with Britain's first astronaut, Helen Sharman, blasted off into space towards Mir, the Soviet space station. Sergei Krikalev’s and Anatoli Artsebarski’s mission was to relieve the existing crew of the space station, while Helen Sharman was onboard as part of the British Juno program to conduct experiments on life sciences. Sharman returned back to earth together with the crew of the previous mission eight days later, leaving Krikalev and Artsebarski circling around the earth conducting repairs on the ailing space station. Five months later, Anatoli Artsebarski went home too, but Krikalev didn’t mind—he was trained for long-duration flights. Two years earlier, Krikalev had spent 152 days aboard Mir. He did not know … Read the rest
Less than one hundred years ago, astronomers were not even sure whether our galaxy made up the entire universe or there were more Milky Ways like ours. Edwin Hubble settled the debate in 1925 when he established that the Andromeda Galaxy was not a cluster of stars and gas within our own galaxy, but an entirely separate galaxy located a vast distance away from the Milky Way. Since then astronomers have discovered thousands of galaxies, but they are also aware that there are potentially hundreds of billions of more galaxies floating out there in the void.