The optics for NASA's Nancy Grace Roman Space Telescope have been delivered, marking a big milestone in the assembly of the ...

PASADENA, Calif. (CN) – The quest to find exoplanets – Earth-like objects orbiting distant stars in our universe – will get a boost from a flower-like spacecraft with metallic petals to block ...

Artwork: the Kepler-90 system is the first to tie with our Solar System in number of planets Nasa has found a distant ... Some 3,500 exoplanets - worlds circling other stars - have been documented ...