Humans really do rule the world. We took over fast and far, more than any other wild vertebrates. We inhabit nearly every ...
A sample collected by the Hayabusa 2 spacecraft from the spinning top-like asteroid contained the nucleobases adenine, ...
In the 20th century, scientists began to suspect Earth was a lot older than we thought. It was our old friends/deadly foes, ...
There are many open questions about how our planet formed 4.55 billion years ago: When did plate tectonics start? When did ...
The tiniest life forms are also among Earth’s toughest, from near-invincible tardigrades to extremophilic microbes that thrive near volcanoes and hydrothermal vents. But could some of these itsy-bitsy ...
Over 4 billion years ago, an asteroid called Bennu was drifting through the solar system. Three years ago, NASA brought 121.6 grams of that space rock back to Earth. Scientists wanted to see if the ...
How did Earth’s earliest, fragile protocells evolve into the complex cells we know today? A new study explores how subtle differences in membrane chemistry influence the way simple cell-like ...
Researchers have long believed that a sudden, massive deluge filled a dry, salt-filled Mediterranean 5 million years ago. Turns out that probably didn't happen, but there was still drama aplenty. When ...
A rebuilt enzyme from Earth’s deep past has preserved the same chemical fingerprint seen in ancient rocks, confirming that a key signal of life has remained stable for billions of years. That ...
Update March 13, 2026: NASA announced that it seeks to launch Artemis II by as early as April 1, 2026. Soon, four U.S. astronauts are slated to begin their history-making journey to the moon and back.
For many years, planetary scientists have believed that water-rich meteorites arriving late in Earth’s history (OK, the time might be late to the researchers, but it’s still 4 billion years ago) could ...
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