TRAPPIST-1
TRAPPIST-1 mini-planetary system and what it means for the spread of life between worlds
Only a few dozen known worlds as small as the rocky worlds of our inner Solar System and orbiting within ...
Did life originate on Earth? It’s becoming more difficult to say ‘yes’
Discovery of Earth-sized planets and of microbial fossils as old as 4.5 billion years may shed light on the question ...
