A study from Caltech shows that the early Earth accreted from hot and dry materials, indicating that our planet’s water—the crucial component for the evolution of life—must have arrived late in the history of Earth’s formation.
In our solar system, everything seems to be in order: The smaller rocky planets, such as Venus, Earth or Mars, orbit relatively close to our star.
Researchers examine a 4.6 billion- year-old rock to better understand the solar system’s beginning, and a modern mystery.
Science Snapshots From Berkeley Lab – Water purification, infant-warming device, cuff-based heart disease monitor, ancient magnetic fields
A long time ago – roughly 4.5 billion years – our sun and solar system formed over the short time span of 200,000 years. That is the conclusion of a group of Lawrence Livermore National Laboratory (LLNL) scientists after looking at isotopes of the element molybdenum found on meteorites.
Researchers at Washington University in St. Louis are the first to study presolar materials that landed on a planet-like body. Their findings may help solve the mystery: where did all the water on Earth come from?