A 3-D thermal model identifies a ~ 4.33 Ga temporal “sweet spot” for life’s origin, when decreased bombardment enabled mild hydrothermal niches to support RNA World chemistry and stable biomolecule ...

There is still so much we don't understand about the origin of life on Earth. The definition of life itself is a source of debate among scientists, but most researchers agree on the fundamental ...

A popular model of evolution concludes that it was incredibly unlikely for humanity to evolve on Earth, and that extraterrestrial intelligence is vanishingly rare. But as experts on the entangled ...

A recent paper in Nature Communications from researchers at UCLA and NASA’s Goddard Space Flight Center, offers new insight into the mystery of life. Previous experiments focused on existing molecular ...

A recent scientific study is challenging one of the most established ideas about how life first developed on Earth. Researchers from the University of Arizona suggest that the earliest stages of ...

When and where did life on Earth begin? What ingredients does the recipe for life require? Is there life out there beyond the stars, and if so, did it arise in the same way? Or are we alone in the ...

The geological time scale, established by scientists in the mid-19th century and agreed upon internationally, breaks down the eternity of our planet's history into more manageable units than years.

Billions of years of evolution have made modern cells incredibly complex. Inside cells are small compartments called organelles that perform specific functions essential for the cell’s survival and ...

The special issue of Astrobiology explores how life may have begun in chemically dynamic environments on land, perhaps similar to the hot springs that can be seen in Yellowstone National Park. For ...

When a bone grows, our bodies’ proteins help provide the structure. When a muscle tears, proteins help rebuild it. When we fight an infection, transport oxygen in our blood or send messages to a cell, ...

In many submerged regions, murky mud shelters strange life-forms that seem to be the key to one of the biggest mysteries of life on Earth. These creatures belong to a domain of life called the archaea ...