Life in the UniverseAnswer
How did life on Earth begin?
Life showed up early on a young Earth, and nature can make some of its raw parts, but the step from chemistry to the first living cell is still one of science’s big open questions.
TOPIC
Astrobiology.
Stories and answers about #Astrobiology
FROM THE QUESTION LIBRARY
Short answers, with sources.
Life in the UniverseAnswer
Is life likely to be rare or common in the universe?
Planets turn out to be everywhere, but we still know of only one living world, so here is what the numbers say, where the arguments split, and how to judge the next headline.
Life in the UniverseExplainer
The Fermi Paradox: Where Is Everybody?
Planets are everywhere, yet the sky seems silent. Here is what that silence does and doesn't tell us, and how scientists are listening now.
Life in the UniverseExplainer
How Did Life on Earth Begin?
Life appeared early on a young Earth, but no lab has yet recreated the leap from chemistry to biology, and the question remains open.
Life in the UniverseExplainer
Are We Alone in the Universe?
Planets are common. Evidence of life beyond Earth has yet to be confirmed.