News
- Earth
The Hunga Tonga volcano eruption touched space and spawned a lightning blitz
The eruption of the Hunga Tonga-Hunga Ha’apai volcano in the Pacific Ocean earlier this year was one for the record books — in several surprising ways.
- Planetary Science
NASA’s Perseverance rover captured the sound of a dust devil on Mars
A whirlwind swept over Perseverance while its microphone was on, capturing the sound of dust grains hitting the mic or the NASA rover’s chassis.
- Physics
In a breakthrough experiment, nuclear fusion finally makes more energy than it uses
The sun creates energy through nuclear fusion. Now scientists have too, in a controlled lab experiment, raising hopes for developing clean energy.
- Paleontology
Katydids had the earliest known insect ears 160 million years ago
Fossils from the Jurassic Period show katydid ears looked identical to those of modern katydids and could pick up short-range calls.
- Space
Artemis 1’s Orion capsule returned safely to Earth. What’s next?
The first test flight in NASA’s return to the moon Artemis program ended well with the uncrewed capsule splashing down in the Pacific Ocean.
- Health & Medicine
How much water should you drink a day? It depends on several factors.
A study of more than 5,000 people in 23 countries finds that individual water need varies widely depending on physical and environmental factors.
- Health & Medicine
Brief bursts of activity offer health benefits for people who don’t exercise
Non-exercisers who had brief bouts of vigorous day-to-day activity saw a reduced risk of death comparable to that of people who exercise regularly.
- Chemistry
How to make tiny metal snowflakes
In a pool of molten gallium, researchers grew symmetrical, hexagonal zinc nanostructures that resemble natural snowflakes.
- Math
The metric system is growing. Here’s what you need to know
Science News spoke with a metrologist about the metric system’s latest update, which will help scientists interpret exceedingly big and small numbers.
- Astronomy
A bizarre gamma-ray burst breaks the rules for these cosmic eruptions
The 50-second gamma-ray burst is the first that unambiguously breaks the rule that long bursts usually come from supernovas.
- Microbes
The ancestor to modern brewing yeast has been found hiding in Ireland
Previously found in Patagonia and elsewhere, the brewing yeast Saccharomyces eubayanus has been found in Europe for the first time.
- Paleontology
Armored dinos may have used their tail clubs to bludgeon each other
Broken and healed spikes on Zuul's flanks are consistent with the armored beast receiving a mighty blow from the tail club of another ankylosaur.
