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Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 440 posts.
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Webb telescope spots super old, massive galaxies
In a new study, CU Boulder astrophysicist Erica Nelson and her colleagues spotted six "fuzzy dots" of light in images from the James Webb Space Telescope. The
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Scientists use quantum device to slow chemical process by factor of 100B
In a world-first experimental result, scientists at the University of Sydney have used a quantum computer to coax an atom to behave the same way as a photo-chemical process that underpins the speed of human vision and solar energy harvesting - only at speeds 100 billion times slower than in nature.
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Using GPT-4 to measure the passage of time in fiction
Large language models are valuable research assistants, especially when they refuse to follow instructions.
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Problem solving with dimensional analysis
A dimension is a physical quantity that can be measured, while a unit is a specific amount of a physical quantity. For example, time is a dimension, which can be measured in temporal units such as hours or seconds.
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An implantable device could enable injection-free control of diabetes
MIT engineers designed an implantable device that carries hundreds of thousands of islet cells along with its own on-board oxygen factory to keep the cells healthy. Such a device could help Type 1 diabetes patients eliminate the need for insulin injections.
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$200M gift propels scientific research in the search for life beyond Earth
November 8, 2023, Mountain View, CA – The SETI Institute , a non-profit scientific research organization, announced today a philanthropic gift of $200m from the estate of Franklin Antonio, a visionary supporter and catalyst of the work of the SETI Institute for more than 12 years. Co-founder of communications chip…
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Ultra-processed foods may contribute to cognitive decline
Surprisingly, even packaged foods that contain healthy components can qualify as ultra-processed. Jamie Grill Photography/Tetra Images via Getty Images Sara N. Burke, University of Florida Scientists have known for years that unhealthy diets – particularly those that are high in fat and sugar – may cause detrimental…
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Antioxidants found to spur cancer growth and metastasis in mice
Vitamin C and other antioxidants stimulate the formation of new blood vessels in lung cancer tumours, a new study from Karolinska Institutet published in The Journal of Clinical Investigation shows. The discovery corroborates the idea that dietary supplements containing antioxidants can accelerate tumour growth and…
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Concordia students set to launch most powerful rocket developed by civilians
The Rocketry Division is in the race to launch the world’s first student-built rocket into the cosmos.
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Immune system cells in the gut linked to stress-induced depression
Johns Hopkins Medicine study adds to evidence that T cell-driven changes in the gut may affect brain function associated with depressive symptoms
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We're wasting money by only supporting gzip for raw DNA files
Stylised graphics of money with DNA helix in the foreground.
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Lab Notebooks (2020)
What wet-lab chemistry can teach software engineers
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All the hominins made tools
A study of associations between stone tool evidence and fossil hominin remains shows that a wide range of species made stone artifacts.
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Germany Achieves Record 57.7% Renewable Energy Share for First Half of 2023
Renewable power generation in the first half of 2023, with a share of 57.7 percent of the net electricity generation for public power supply, was significantly higher than in 2022.
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Turns out lowly thymus may be saving your life
Study suggests the organ plays a vital role in immune health, particularly cancer prevention.
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Speed isn’t everything, and slowness may in fact be more beneficial (2017)
Eloise looks at whether ‘slow and steady wins the race’.
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fMRI-to-image with contrastive learning and diffusion priors
a cutting-edge method for reconstructing and retrieving images from fMRI brain activity. Discover how fMRI enables detailed analysis of brain functions and aids in evaluating brain treatments. MindEye's training on the Natural Scenes Dataset brings new insights to neuroscience research. Explore the
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Some alloys don't change size when heated – recent work on why
Researchers in the lab of Brent Fultz have discovered why so-called Invar alloys keep a steady size and shape over a broad range of temperatures—unlike most materials.
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The Point of the Banach-Tarski Theorem
One of my favourite Limited Audience Jokes (although technically it's actually a riddle) goes:
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Helplessness is not learned (2022)
Română On the sixth day of our science advent, we would like to talk about a debunked concept in neuroscience. The purpose of this prompt and of science debunking, in general, is not to make fun of how scientists in the past got things so wrong and how we’re so much smarter now. The point […]
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Leonardo Da Vinci’s Self-Powered Cart (2021)
A club for Meccano enthusiasts in London, holding four meetings each year and a public Meccano Show in Falconwood.
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I think faster than light travel is possible [video]
Science News, Physics, Science, Philosophy, Philosophy of Science
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Loss of epigenetic information can drive aging in mice
Study implicates changes to way DNA is organized, regulated rather than changes to genetic code
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Bit by bit microplastics from tyres are polluting our waterways
Particles from tyre wear were found to be the most prevalent microplastic in urban stormwater
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Nicotine (2016)
On the benefits and lack of demerits of nicotine (research up to 2015)