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Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 2,418 posts.
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‘Anti-hunger’ molecule forms after exercise, scientists discover
Stanford Medicine researchers and their collaborators have identified a molecule that staves off hunger post-exercise.
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Nutrient found in beef and dairy improves immune response to cancer in mice
Scientists at UChicago discover that trans-vaccenic acid (TVA), a fatty acid found in beef, lamb, and dairy products, improves the ability of immune cells to fight tumors.
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Too much fructose can damage your liver, just like too much alcohol
There’s growing scientific consensus that one of the most common types of sugar, fructose, is toxic to the liver, just like alcohol.
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The Mathematical Genius of Auto-Tune
Auto-Tune — one of modern history’s most reviled inventions — was an act of mathematical genius.
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1800s Astronomical Drawings vs. NASA Images (2016)
Comparing astrological drawings from our Digital Collections to NASA images—how similar do you think they are?
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Solar-powered desalination device wins MIT $100K competition
The winner of the 2022 MIT $100K Entrepreneurship Competition was Nona Desalination, which is developing a low-cost, portable water desalination and purification device.
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Microrobots can brush and floss teeth in a proof-of-concept study
In a proof-of-concept study, researchers from the School of Dental Medicine and School of Engineering and Applied Science shows that a hands-free system could effectively automate the treatment and removal of tooth-decay-causing bacteria and dental plaque.
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University of Texas-led team solves a big problem for fusion energy
AUSTIN, Texas — Abundant, low-cost, clean energy — the envisioned result if scientists and engineers can successfully produce a reliable method of
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CT scans of 1k lithium-ion batteries show quality risks in inexpensive cells
Lumafield’s Battery Quality Report exposes hidden risks in 18650 cells; 1 in 13 low-cost units have dangerous defects. See how CT helps enforce safety.
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Simulation of a 2B-atom cell that metabolizes and grows like a living cell
Researchers from the University of Illinois developed GPU-accelerated software to simulate a cell that metabolizes and grows like a living cell.
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How strong is your knot?
MIT mathematicians and engineers have developed a mathematical model that predicts how stable a knot is, based on several key properties, including the number of crossings involved, and the direction in which the rope segments twist as the knot is pulled tight.
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Dopamine and Temporal Difference Learning
Learning and motivation are driven by internal and external rewards. Many of our day-to-day behaviours are guided by predicting, or anticipating, whether a given action will result in a positive (that is, rewarding) outcome. The study of how organisms learn from experience to correctly anticipate rewards has been a…
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Efficient method to capture carbon dioxide from the atmosphere
The method is based on a recyclable filtration fluid consisting of a superbase-alcohol compound. One gram of the new compound can absorb 156 milligrams of carbon dioxide.
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Human use of high-bandwidth wireless brain-computer interface
In an important step toward a fully implantable intracortical brain-computer interface system, BrainGate researchers demonstrated the first human use of a wireless transmitter capable of delivering high-bandwidth neural signals.
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Why is 70% isopropyl alcohol a better disinfectant than 99% isopropanol?
How does one solution kill viruses and bacteria on contact, and the other not at all?
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How to Be a Systems Thinker
At the moment, I’m asking myself how people think about complex wholes like the ecology of the planet, or the climate, or large populations of human beings that have evolved for many years in separate locations and are now re-integrating. To think about these things, I find that you need something like systems theory…
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Student rocket group shatters amateur space record
Aftershock II is believed to be the world’s first civilian-built rocket to reach an altitude of 470,000 feet.
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AI and satellite imagery reveals expanding footprint of human activity at sea
Study reveals 75 percent of the world’s industrial fishing vessels are hidden from public view
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A Trial HIV Vaccine Triggered Elusive and Essential Antibodies in Humans
DURHAM, N.C. – An HIV vaccine candidate developed at the Duke Human Vaccine Institute triggered low levels of an elusive type of broadly neutralizing HIV antibodies among a small group of people enrolled in a 2019 clinical trial.The finding, reported May 17 in the journal Cell, not only provides proof that a vaccine…
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Sound-suppressing silk can create quiet spaces
MIT researchers developed a silk fabric, which is barely thicker than a human hair, that can suppress unwanted noise and reduce noise transmission in a large room.
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Our closest worm kin regrow body parts, raising hopes of regeneration in humans
A new study of one of our closest invertebrate relatives, the acorn worm, reveals that regenerating body parts might one day be possible.
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Forensic Ballistics: How Apollo 12 Helped Solve the Skydiver Meteorite Mystery
What can a 45-year-old mission to the Moon tell us about a
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Students invent quieter leaf blower
Patent-pending design by Hopkins undergrads could be available in stores within two years