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Canon RF 20mm f/1.4L VCM review: Wide, bright and built for the dark
Science News

Canon RF 20mm f/1.4L VCM review: Wide, bright and built for the dark

The Canon RF 20mm f/1.4L VCM is an intriguing lens for photographers who want a wide field of view without sacrificing aperture. Its f/1.4 maximum aperture makes it particularly appealing for astrophotography, while the 20mm focal length offers plenty of room for landscapes, architecture and other wide-view scenes.We took the lens out to the dark skies of Wales to photograph the night sky and the Perseids, giving it a real-world test in some of the best conditions we could find. With a premium L-series build and a price tag to match, there's a lot to consider before adding this lens to your kit. We wanted to find out how it actually performs in the real world, and whether it's worth the inve...

📅 2026-09-10 11:00:00    •    Live Science
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Archaeologists find a 3,000-year-old Egyptian tomb before it’s too late
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Archaeologists find a 3,000-year-old Egyptian tomb before it’s too late

While clearing debris to protect ancient Egyptian tombs from flash floods, researchers near Luxor stumbled upon an unknown 3,000-year-old tomb. Its remarkably preserved paintings depict an official named Paser, his wife, religious scenes, and offerings of food and flowers. The discovery comes as climate-driven flooding poses a growing threat to these fragile remains.

📅 2026-09-10 10:35:52    •    ScienceDaily
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A Harvest Moon with 5 planets on the side: September is the best month for stargazing, ‪and this year is extra special
Science News

A Harvest Moon with 5 planets on the side: September is the best month for stargazing, ‪and this year is extra special

There may be no better month to get outside and look at the stars than September, when warm evenings meet rapidly lengthening nights, the Milky Way remains visible overhead, and the changing seasons can increase your chances of seeing the northern lights.For stargazers in the Northern Hemisphere, summer presents an obvious problem: Darkness arrives late. By September, however, sunset is getting noticeably earlier each evening, providing far more time under dark skies with mild weather in most locations. Days can still feel summery, while nights tend to remain pleasant enough to spend hours outside with a pair of stargazing binoculars or a good backyard telescope. The only challenge is findin...

📅 2026-09-10 10:00:00    •    Live Science
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Ancient teeth reveal humans were getting high 25,000 years ago
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Ancient teeth reveal humans were getting high 25,000 years ago

Ancient human remains from Sulawesi suggest people were habitually using the psychoactive betel nut as far back as 25,000 years ago. Researchers found both unusual tooth wear and traces of arecoline, the nut’s mind-altering compound, in the teeth of prehistoric hunter-gatherers. The practice may have started partly as pain relief for toothaches, but prolonged use severely damaged their teeth. The discovery could represent the earliest known evidence of habitual drug use anywhere in the world.

📅 2026-09-10 07:58:25    •    ScienceDaily
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UNESCO warns there’s close to a 100% chance of a Mediterranean tsunami
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UNESCO warns there’s close to a 100% chance of a Mediterranean tsunami

The Mediterranean may seem far removed from the world’s major tsunami zones, but history and modern modeling show that destructive waves can strike the French Riviera with surprisingly little warning. Some tsunamis could reach shore in under 10 minutes, while past events have produced waves around two meters high, powerful currents, damage, and deaths.

📅 2026-09-10 06:35:49    •    ScienceDaily
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One sugary drink a day linked to more than double the risk of stomach cancer
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One sugary drink a day linked to more than double the risk of stomach cancer

People who drank at least one sugar-sweetened beverage a day had roughly 2.45 times the risk of gastric cancer compared with those who rarely consumed them, according to a decades-long study of more than 112,000 U.S. adults. Artificially sweetened drinks showed no similar association, though researchers stress that the findings do not prove sugary beverages cause cancer.

📅 2026-09-10 02:56:17    •    ScienceDaily
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400,000-year-old teeth reveal a hidden link in human evolution
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400,000-year-old teeth reveal a hidden link in human evolution

More than 400,000-year-old Homo erectus teeth from China may reveal a surprising link between this ancient human species, Denisovans, and some modern people. Scientists found protein mutations suggesting several East Asian Homo erectus populations belonged to the same evolutionary group, including one mutation previously associated with Denisovans. That variant may have passed from Homo erectus into Denisovans and eventually reached modern populations in Southeast Asia and Oceania.

📅 2026-09-10 02:18:08    •    ScienceDaily
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Electrical fingerprint on tiny cell particles could offer new way to spot pancreatic cancer signals
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Electrical fingerprint on tiny cell particles could offer new way to spot pancreatic cancer signals

An electrical fingerprint found on tiny particles in the blood may help detect signs of pancreatic cancer that are often overlooked, according to new research from Rice University. The researchers developed a device that separates these particles based on their electrical charge, making cancer-associated signals more visible.

📅 2026-09-09 23:40:09    •    Phys.org
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Unconventional quantum materials could dramatically boost the search for dark matter
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Unconventional quantum materials could dramatically boost the search for dark matter

For decades, physicists have searched for dark matter, the invisible substance thought to make up roughly 85% of all matter in the universe. Although its gravitational influence shapes galaxies and the large-scale structure of the cosmos, dark matter has never been directly detected. Now, an international team has identified a new class of quantum materials that could dramatically improve the search for some of the lightest and most elusive forms of dark matter.

📅 2026-09-09 23:20:04    •    Phys.org
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Tiny salt crevices could act as miniature 'Greenhouses' for Martian microbes
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Tiny salt crevices could act as miniature 'Greenhouses' for Martian microbes

We've been searching for life on Mars for a long time, but so far we've come up empty. The fundamental problem is a Catch-22 involving two of the key ingredients for life. Life as we know it needs liquid water and reasonable temperatures, both of which are available on Mars, but hardly ever at the same time. But a new paper from lead author Anna Bognar and her team at ELTE Eötvös Loránd University and the Konkoly Observatory describes a way for life to access both requirements at the same time—by hiding away in salt crystals.

📅 2026-09-09 23:00:02    •    Phys.org
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Natural clay reveals a new way to control ion transport at the angstrom scale
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Natural clay reveals a new way to control ion transport at the angstrom scale

Researchers at the National Graphene Institute have shown that naturally occurring channels within a common clay mineral can respond to pressure, voltage and pH, offering possibilities for controlling the movement of ions through extremely small, confined spaces. The study, published in Advanced Materials, focuses on vermiculite, a naturally abundant layered clay whose structure contains channels only a few angstroms high, providing naturally confined pathways through which ions can move.

📅 2026-09-09 22:20:01    •    Phys.org
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Molecular surface design achieves over 100 million-fold tuning of porous liquid viscosity
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Molecular surface design achieves over 100 million-fold tuning of porous liquid viscosity

Porous liquids combine permanent nanoscale cavities with fluidity, making them promising for applications like carbon dioxide capture, gas separation and other chemical processes. Their viscosity must be tailored to the intended application: Lower-viscosity liquids are easier to pump and circulate while facilitating faster heat and mass transfer, whereas higher-viscosity liquids provide greater structural stability in membrane formation.

📅 2026-09-09 22:00:08    •    Phys.org
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Africa's rocks hold ancient stories. We need better ways to document and protect them
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Africa's rocks hold ancient stories. We need better ways to document and protect them

From the Vredefort Dome in South Africa (the world's oldest and largest known meteorite impact structure) to the volcanic lakes of the Great Rift Valley in Kenya, Africa's landscapes hold some of Earth's oldest stories. Morocco's M'Goun UNESCO Global Geopark records more than 200 million years of geological history, while Tanzania's Ngorongoro-Lengai landscape brings together a vast caldera, an active volcano and the fossil record of Olduvai Gorge.

📅 2026-09-09 22:00:01    •    Phys.org
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