News
- Health & Medicine
Brain stem cells help Parkinson’s monkeys
Transplants of human-brain stem cells triggered signs of improvement in monkeys with a Parkinson's disease–like disorder.
- Physics
Pulling Strings: Stretching proteins can reveal how they fold
Unfolding a single protein by pulling on its ends reveals the molecular forces that make it fold up.
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Forget About It: How the brain suppresses unwanted memories
Two newly discovered neural processes give people the ability to intentionally forget upsetting memories.
- Astronomy
Shattering Find? Comet fragments show surprising uniformity
Close observations of fragments of a comet indicate that its interior was remarkably similar to its surface, meaning that repeated solar heating didn't much change its outer layers.
