planet would probably be able to meet that challenge, said former astronaut John Grunsfeld, associate administrator of NASA's Science Mission Directorate. After all, he said, firefighters and backpackers routinely carry heavy loads, mimicking (albeit temporarily) the effect of increased surface gravity...
A. Kepler-452b is located in the constellation Cygnus B. Kepler-452b’s atmosphere is conducive to life C. gravity would be about twice as strong on Earth as it is on Kepler-452b D. the sunshine from Kepler-452b would feel very different from the sunshine from E. arth ...