The new plot twist is that in order to keep enough nitrogen and phosphorus near its surface, a planet has to start out with ...

Researchers have long believed that a sudden, massive deluge filled a dry, salt-filled Mediterranean some 5 million years ago ...

Thousands of satellites that disintegrate upon re-entry release aluminum into the atmosphere, disrupting polar winds and the ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...

As nations posture over access to rare earth deposits, scientists say these coveted materials are hiding in plain sight – and can be harvested without any conventional mining at all.

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...

Researchers used artificial intelligence to rapidly scan decades of scientific literature and uncover tens of thousands of ...

Low Earth orbit is filling up fast, and the old tools for keeping satellites from colliding are starting to look as dated as paper road maps in the age of GPS. Instead of relying only on ground radars ...

Earth's biosphere is brimming with symbiotic relationships: from bacteria that became our cells' mitochondria, to mycorrhizal fungi that help plants ...

The race is on to develop an artificial intelligence that can do pure mathematics, and top mathematicians just threw down the gauntlet with an exam of actual, unsolved problems that are relevant to ...

Frustrated by AI industry claims of proving math results without transparency, a team of leading academics has proposed a better way ...

The planets in our solar system grew out of a disk of material that swirled around our Sun. Inner rocky planets formed as tiny grains stuck together ...