2 Earth-size worlds revealed beyond our solar system

Searching Earth For Alien Worlds

In 2011, astronauts Neil Armstrong and Gene Cernan, first and last men on the Moon, advocated for Space Shuttles to be put back in service. Armstrong supported NASA's proposed Space Launch System, which the agency said could one day take man to Mars

‘Presolar’ meteorite grains, older than our Solar System, may have formed in steps not predicted by conventional theory — research that may aid understanding of nanoparticle formation, and how stars evolve