Why a rocky planet with three suns has astronomers' attention

Planets that are even a little like Earth are hard to find. That's why when astronomers like Jennifer G. Winters come across a body that may be solid, rocky, and possibly have its own atmosphere, they get excited. And especially ...

Ancient die-off greater than the dinosaur extinction

Clues from Canadian rocks formed billions of year ago reveal a previously unknown loss of life even greater than that of the mass extinction of the dinosaurs 65 million years ago, when Earth lost nearly three-quarters of ...

Early life on Earth limited by enzyme

The enzyme-nitrogenase-can be traced back to the universal common ancestor of all cells more than four billion years ago.

What delayed Earth's oxygenation?

Powering a massive biosphere on Earth, photosynthesis is the light-mediated reaction that converts carbon dioxide and water to carbohydrates and oxygen. About 2.3 billion years ago, this reaction led to a dramatic oxygenation ...

Ammonium fertilized early life on Earth: study

A team of international scientists—including researchers at the University of St. Andrews, Syracuse University and Royal Holloway, University of London—have demonstrated a new source of food for early life on the planet.

High-tech material in a salt crust

MAX phases are viewed as promising materials for the future, for example, in the power, aerospace and medical implants industries. A new method developed by scientists from Forschungszentrum Jülich now makes it possible ...

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