Astronomers have long known where water is first formed in the universe and how it ends up on planets, asteroids and comets. A recent discovery has finally answered what happens in between.
Ancient rocks from Western Australia may not contain the world’s oldest fossils – but they do preserve organic compounds that may have formed the raw materials for the first living cells.
Sarah McMullan / UKFN / Global Fireball Observatory
The chemical reaction that forms essential biomolecules like proteins and DNA normally doesn’t occur in the presence of water. Microdroplets provide a unique environment that make it possible.
Image of Ryugu taken by the Hayabusa 2 spacecraft in 2018.
JAXA/wikipedia
It looks like a broken barbeque brickette, but the newfound meteorite is a capsule of the Solar System’s history that could reveal the secrets of the origin of life.
Artist impression of Hayabusa 2 approaching asteroid Ryugu.
Deutsches Zentrum für Luft- und Raumfahrt (DLR)/wikipedia
How ancient microbes survived in a world without oxygen has been a mystery. Scientists discovered a living microbial mat that uses arsenic instead of oxygen for photosynthesis and respiration.
Dust can be instructive. The analysis of those collected around the comet 67P/Churyumov-Gerasimenko provided new information on the history of the solar system.