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 scrappy science project led to a significant discovery: two new species of a rare organism that could elucidate a fundamental transition in the history of life on our planet.

No time machine exists that can take us back to find out how life started on our planet. Instead, chemists have been trying to build a plausible chemical scenario that could explain its origin. The ...

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 ...

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 top-down study of life’s origin—via the examination of ancient fossils—doesn’t tell us much about early biochemistry. Fossil cells, molecules, and isotopes are indistinguishable from those of ...

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, ...

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 ...