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Mysterious object is being dragged into the black hole at the Milky Way’s center
Research by UCLA and Keck Observatory scientists concluded that the object, X7, could be a debris cloud from a stellar collision.
New
The latest blog posts to take off on Hacker News. 4,455 posts.
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Excess weight, obesity more deadly than previously believed
New CU Boulder research finds that overweight populations have a 22% higher mortality risk than those of healthy weight, while obese populations have as much as
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How to date a recording using background electrical noise
Three men were accused of selling firearms to South London gangs. At their 2012 trial in Croydon Crown Court, the prosecution played the jury a recording, taken undercover, of the trio allegedly arranging a sale. But the men’s lawyers claimed that the recording was a fake, and that the police had fabricated it by…
1534
PFAS can suppress white blood cells’ ability to destroy invaders
GenX can suppress some white blood cells' ability to kill invaders.
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Multiple Sclerosis discovery could end disease's chronic inflammation
A new study IDs a key contributor to the hyperactive autoimmune response and neuroinflammation that are the hallmarks of multiple sclerosis.
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LED lighting badly suppresses human melatonin production at night
Yes, it’s a spicy title. Yes, I plan to back it with what I consider very reasonable evidence of the claims, in the form of a lot of research papers. I would simply ask that you read to the end before deciding I’ve lost it.
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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
1538
Chemists create methane fuel from sun, carbon dioxide and water (2022)
UChicago breakthrough creates methane fuel from sun, carbon dioxide and water
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Vinyl Chloride and the Ohio Train Derailment
The recent Ohio train derailment and subsequent fire that released vinyl chloride into the environment has been a terrifying experience for the nearby population. The accident rekindles memories of the 1979 train accident in Mississauga, Ontario, when over 200,000 people had to be evacuated after a wheel bearing…
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Color of the Night Sky (2019)
What color is the night sky? Contrary to prevailing views, the moonless night sky is rarely, if ever, black or blue. It is actually much more colorful. In this article, I'll describe some of the colors and the physical reasons for those colors.
1541
Black holes as the source of dark energy
New research suggests that as our universe expands, black holes gain mass, and this connection between black holes and the universe's expansion is the source of dark energy.
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Leonardo da Vinci’s experiments explored gravity as a form of acceleration
A new look at da Vinci’s papers reveals his insightful attempts to probe the nature of gravity 500 years ago
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Study Suggests Fructose Could Drive Alzheimer's Disease
An ancient human foraging instinct, fueled by fructose, may hold clues to the development of Alzheimer’s disease, according to researchers.
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Scientists find first observational evidence linking black holes to dark energy
Study No. 1 in The Astrophysical Journal: A Preferential Growth Channel for Supermassive Black Holes in Elliptical Galaxies at z ≲ 2 Study No. 2 in The Astrophysical Journal Letters: Observational Evidence for Cosmological Coupling of Black Holes and Its Implications for an Astrophysical Source o
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Food coloring, anti-caking nanoparticles may affect human gut
Metal oxide nanoparticles – commonly used as food coloring and anti-caking agents in commercial ingredients – may damage parts of the human intestine, say Cornell and Binghamton University scientists.
1548
Blue Origin manufactured solar cell prototype from lunar regolith simulants
Since 2021, Blue Origin has been making solar cells and transmission wire from regolith simulants.
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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.
1551
Deteriorating mitochondria linked to major depression in older adults
'One problem feeds into another, and make what began as a small issue into a much larger one'
1552
Scientists discover receptor that blocks Covid-19 infection
University of Sydney scientists have discovered a protein in the lung that blocks SARS-CoV-2 infection and forms a natural protective barrier in the human body.
1553
I changed my mind about nuclear waste
I’ve feared it. I’ve protested it. Now I’m hugging it
1554
Scientists document two separate reservoirs of latent HIV in patients
This research, led by UNC School of Medicine scientists Laura Kincer, Sarah Joseph,and Ron Swanstrom with international collaborators, shows that in addition to HIV’s ability to lay dormant in the blood/lymphoid system, the virus may also lay dormant in the central nervous system, delineating another challenge in…
1555
AI Joins Hunt for ET: Study Finds 8 Potential Alien Signals
A University of Toronto undergrad among an international team of researchers unleashing deep learning in the search for extraterrestrial civilizations.
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Fungi and bacteria are binging on burned soil
UC Riverside researchers have identified tiny organisms that not only survive but thrive during the first year after a wildfire. The findings could help bring land back to life after fires that are increasing in both size and severity.
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A 50-year quest: My personal journey with the second law of thermodynamics
Follow Stephen Wolfram's evolution of research on the 2nd Law from early interest as a 12-year-old to his current findings in the Wolfram Physics Project. View a large collection of images of early and published works.
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