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3 articles from ScienceNOW
With innovative bioreactor as womb, mouse stem cells transform into organ-filled embryos
What happens in embryonic development is one of nature’s best guarded secrets, unfolding deep in the mother’s body. Now, researchers have opened a new window on the process. They’ve made artificial mouse embryos from stem cells—no sperm or eggs required—and used an innovative bioreactor to nurture their creations for longer than any previous embryo models. The simulated embryos...
First photos of cougars killing donkeys in Death Valley suggest big impacts for ecosystem
For humans and wildlife alike, feral donkeys can be a pain in the ass. Large and full of attitude, the scruffy vegetation-destroying equids steal resources from native sheep and tortoises, poop in precious spring water, and cost many a park manager a good night’s sleep.
They aren’t unstoppable, however. In Death Valley National Park, researchers have captured the first...
Ordinary computers can beat Google’s quantum computer after all
If the quantum computing era dawned 3 years ago, its rising sun may have ducked behind a cloud. In 2019, Google researchers claimed they had passed a milestone known as quantum supremacy when their quantum computer Sycamore performed in 200 seconds an abstruse calculation they said would tie up a supercomputer for 10,000 years. Now, scientists in China have done the computation in a...