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Stress does turn hair gray, and it’s reversible
A new study from researchers at Columbia University is the first to quantitatively link psychological stress to graying hair in people and find that the process is reversible.
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 2,418 posts.
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Autonomous drone defeats human champions in racing first
A team of scientists and students from TU Delft has taken first place at the A2RL Drone Championship in Abu Dhabi - an international race that pushes the limits of physical artificial intelligence, challenging teams to fly fully autonomous drones using only a single camera. The TU Delft drone competed against 13…
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Two days of oatmeal reduce cholesterol level
The fact that oats have a beneficial effect on the metabolism is nothing new. German medic Carl von Noorden treated patients with diabetes with the cereal at the beginning of the 20th century – with remarkable success. “Today, effective medications are available to treat patients with diabetes,” explains…
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The Pumpkin Eclipse
The Lumen blog and newsroom is your source for business technology news and insights, customer stories, press and media, and trending articles.
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Long-term exposure to outdoor air pollution linked to increased risk of dementia
An analysis of studies incorporating data from almost 30 million people has highlighted the role that air pollution – including that coming from car exhaust emissions – plays in increased risk of dementia.
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Gene therapy restored hearing in deaf patients
Gene therapy can improve hearing in children and adults with congenital deafness or severe hearing impairment, a new study involving researchers at Karolinska Institutet reports. Hearing improved in all ten patients, and the treatment was well-tolerated. The study was conducted in collaboration with hospitals and…
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Why I've lost faith in p values
[Note: There is a followup to this post .] There has been a lot written over the past decade (and even longer) about problems associated with null hypothesis statistical testing (NHST) and p values. Personally, I have found most of these arguments unconvincing. However, one of t
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Classic Papers: Articles That Have Stood the Test of Time
Scholarly research is often about the latest findings - the newest knowledge that our colleagues have gleaned from nature. Some articles bu...
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Bosch develops rapid test for Covid-19
The PCR diagnostic platform Vivalytic enables COVID-19 rapid tests — a blessing for Clemens Weller and his mother, who suffers from dementia. Learn more!
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First anode-free sodium solid-state battery
UChicago Pritzker Molecular Engineering Prof. Y. Shirley Meng’s Laboratory for Energy Storage and Conversion has created the world’s first anode-free sodium
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Israeli startup claims Covid-19 likely originated in a lab, willing to bet on it
Rootclaim helps people understand complex issues by combining the power of crowdsourced information with the mathematical validity of statistics.
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Nobel Prize in Physiology or Medicine 2025
The Nobel Prize in Physiology or Medicine 2025 was awarded jointly to Mary E. Brunkow, Frederick J. Ramsdell and Shimon Sakaguchi "for their discoveries concerning peripheral immune tolerance"
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Global review confirms mRNA vaccines are safe, effective and full of promise
Comprehensive review brings together global evidence to strengthen public trust and counter misinformation as mRNA vaccines expand to prevent and treat more diseases.
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First images of cerebrospinal fluid in the brain during sleep (2019)
A new study from Boston University is the first to illustrate that the brain’s cerebrospinal fluid pulses during sleep, and that these motions are closely tied with brain wave activity and blood flow. It may confirm the hypothesis that CSF flow and slow-wave activity both help flush toxic, memory-impairing proteins…
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Vaccines should end the pandemic, despite the variants, say experts
Can the current crop of vaccines get us to herd immunity even if variants become widespread? A Harvard immunologist says yes.
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Scientists may have found mechanism behind cognitive decline in aging
Scientists have discovered what they believe to be the central mechanism behind cognitive decline associated with normal aging.
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New treatment eliminates bladder cancer in 82% of patients
LOS ANGELES — A new drug-releasing system, TAR-200, eliminated tumors in 82% of patients in a phase 2 clinical trial for individuals with high-risk non-muscle-invasive bladder cancer whose cancer had previously resisted treatment. In the majority of cases, the cancer disappeared after only three months of treatment…
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UCLA computer grad constructs “crown jewel of cryptography”
Aayush Jain’s dissertation, “Indistinguishability Obfuscation from Well-Studied Assumptions,” established the feasibility of mathematically rigorous software obfuscation from well-studied hardness conjectures. The central goal of software obfuscation is to transform source code to make it unintelligible without…
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Over 40% of deceased drivers in vehicle crashes test positive for THC: Study
Average blood levels far exceed those considered to cause impairment.
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Talent is everywhere, opportunity is not
The world needs ideas and innovation to make progress. Creative and talented people are everywhere, but the opportunity to develop is limited to only a small number of well-off children. The world loses out as a result.
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The Nobel Prize in Physics 2020
The Nobel Prize in Physics 2020 was divided, one half awarded to Roger Penrose "for the discovery that black hole formation is a robust prediction of the general theory of relativity", the other half jointly to Reinhard Genzel and Andrea Ghez "for the discovery of a supermassive compact object at the centre of our…
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Desalination system could produce freshwater that is cheaper than tap water
A new solar desalination system takes in saltwater and heats it with natural sunlight. The system flushes out accumulated salt, so replacement parts aren’t needed often, meaning the system could potentially produce drinking water that is cheaper than tap water.
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First in-utero stem cell therapy for fetal spina bifida repair is safe: study
A UC Davis Health research team has safely performed the world’s first spina bifida treatment combining fetal surgery with stem cells, according to results from Phase 1 of an ongoing clinical trial. These results have been published today in The Lancet.
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Craig Venter has died
La Jolla, California—April 29, 2026—The J. Craig Venter Institute (JCVI) announced that J. Craig Venter, Ph.D., the Institute’s founder,...