All Stories
- Animals
Explainer: What is metamorphosis?
Insects, amphibians and some fish undergo metamorphosis. But they’re not the only ones.
- Animals
Megalodons may have become megahunters by running hot
O. megalodon sharks were warm-blooded mega-predators. But when food sources dwindled, colder-blooded sharks may have had an evolutionary edge.
- Earth
A volcanic eruption sparked the highest lightning ever seen
The eruption plume spawned lightning that started 20 to 30 kilometers (some 12 to 19 miles) above sea level.
By Skyler Ware - Ecosystems
Scientists Say: Predator and Prey
Ecological relationships between predators and their prey drive the evolution of plants, animals and microbes.
- Health & Medicine
Swollen chambers in astronauts’ brains may take 3 years to recover
How long astronauts spend in space and the time since their last mission affects how much fluid-filled chambers in their brains expand while in space.
- Plants
A single particle of light can kick off photosynthesis
In a new experiment with bacteria, a lone photon sparked the process of turning light to chemical energy.
- Animals
Northern elephant seals snooze only two hours a day at sea
These marine mammals sleep only minutes at a time on months-long trips at sea.
- Earth
Scientists Say: Tectonic Plate
Tectonic plates are giant slabs of rock that make up Earth’s outer layer.
- Animals
Explainer: What is animal domestication?
The difference between a dog and a wolf isn’t looks or genes or even behavior. It’s the relationship these animals have with people.
- Materials Science
This house is partly made of recycled diapers
After being washed, dried, sanitized and shredded, used diapers were mixed with other materials to make a strong concrete.
- Chemistry
Experiment: Test the effect of temperature on reaction time
Alka-Seltzer tablets fizzle furiously when dropped into water. Can you make Alka-Seltzer fizz faster or more loudly by changing the water’s temperature?
- Space
Lightning dances through Jupiter’s skies much like it does on Earth
Data from NASA’s Juno spacecraft hint that Jupiter’s lightning extends in jagged steps as it does on Earth.
By Nikk Ogasa