News
- Tech
Light-activated heart cells help guide robotic stingray
Layers of silicone, gold and genetically engineered rat heart cells make up the body of a new stingray robot that can swim in response to light.
- Life
Donor mitochondria could influence metabolism, aging
Mitochondrial DNA donation could have unexpected long-term health consequences for “three-parent babies.”
- Anthropology
New dating suggests younger age for Homo naledi
South African fossil species lived more recently than first thought, study suggests.
- Planetary Science
New clues in search for Planet Nine
Lots of unknowns remain as researchers try to pin down where a possible ninth planet might be hiding in the solar system.
- Life
Letting parasites fight could help battle drug resistance, too
Helping one strain of malaria trounce another in lab mice demonstrates a way of avoiding the evolution of drug resistance.
- Climate
Warming alters mountain plant’s sex ratios
Global warming has different effects on male and female plants. Tracking sex ratio shifts could be a fast signal of climate change, researchers say.
- Animals
Frigate birds fly nonstop for months
The great frigate bird can fly for up to two months without landing, thanks to a boost from wind and clouds.
- Physics
Falling through the Earth would be a drag
Scientists study how friction affects a hypothetical jump through the center of the Earth.
- Paleontology
Parasites wormed way into dino’s gut
Tiny slimed tunnels in the guts of a 77-million-year-old duck-billed dinosaur fossil offer the first hard evidence that dinosaurs may have been infected by parasitic worms, paleontologists say.
- Health & Medicine
Tight spaces cause spreading cancer cells to divide improperly
Researchers are using rolled-up transparent nanomembranes to mimic tiny blood vessels and study how cancer cells divide in these tight spaces.
- Quantum Physics
Quantum fragility may help birds navigate
Birds’ internal compasses may rely on the delicate nature of the quantum world.
- Astronomy
Possible perp found in mystery of Milky Way’s missing galaxy pals
Billions of years of supernovas could explain why galaxies like the Milky Way have so few tiny companions and why those companions have so little mass.
