Think you know a lot about jewels? Can you make this whole quiz shimmer?
Earth from space A 2025 satellite photo captures the stark contrast between the barren Poás volcano and the surrounding Costa Rican jungle. The volcano's super-acidic lake provides the perfect analog for studying how hardy microbes may have emerged on Mars billions of years ago.
The most powerful solar flare of 2025 has launched a ball of energy toward Earth that could trigger widespread auroras across the United States tonight.
Astronomers at South Africa's MeerKAT radio telescope have detected the first radio waves coming from the interstellar comet 3I/ATLAS. But while this sounds suspiciously like alien activity, it is actually further proof of its completely natural origins.
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Our roundup the biggest discoveries and top science in the news each week
Exercise strengthens both the body and the mind, and researchers are uncovering the molecular messengers that make the connection. The messengers can also be transferred from an active mouse to a sedentary one.
Scientists have developed a nanobody-based antivenom that neutralizes toxins from most African cobras, mambas and the rinkhals, which could offer safer, scalable protection beyond existing snakebite treatments.
Three newly-identified toad species in Tanzania give birth to live young, skipping the frogspawn and tadpole stages — an "exceptionally rare" trait among toads and frogs.
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
Opinion How bad-faith arguments sow doubt by weaponizing scientific humility.
Opinion Thousands of scientific papers are retracted every year because of fraudulent activity, with both authors and journals gaming a system to gain academic acclaim through deceit, dishonesty and false representation.
A novel experiment has revealed a phenomenon called the Bohr–Weisskopf effect in a pear-shaped nucleus in a molecule for the first time.
Bubbles are usually the first sign that water’s coming to the boil, but heating it in a microwave seems to skip this important step. Here’s what’s going on.
A new kind of processor that uses microwaves can be used in future AI systems or in wireless communications, a new study shows.
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