“6 ‘lost cities’ archaeologists have never found” and “Is the Sun really a dwarf star?”
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Accessed on 27 December 2025, 2310 UTC.
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Russ Roberts (https://hawaiisciencejournal.com).
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4h
Scholars know of some important ancient cities from texts, but they haven’t been able to find them.
4h
Even the most skilled face recognizers are duped by AI-generated faces, a new study finds. But they can improve with training.
10h
Here are a dozen strange and interesting tales from the medical literature.
Today
/ 4h
Spotting an AI-generated face is harder than you might think. How confident are you in your ability?
12h
Our sun is huge, at least compared to Earth and the other planets. So is it really a dwarf?
Yesterday
Dian Fossey was a zoologist who spent decades studying the elusive mountain gorillas of Congo and Rwanda before she was murdered.
1d
A large fish-eating dinosaur died beside a river 125 million years ago in Cretaceous Thailand. Now, the remains of this ancient predator are helping researchers better understand Asia’s enigmatic spinosaurids.
1d
Scientists adapted a method that can produce double the amount of hydrogen when splitting water molecules with electricity.
A new computational model suggests that Uranus’ and Neptune’s cores may be less icy than their “ice giant” nickname suggests.
1d
Based on our “Diagnostic Dilemma” series, this quiz tests your medical know-how.
1d
A never-before-seen Homo erectus face reveals a complex picture of early human evolution.
/ 1d
Findings about our human ancestors continue to surprise us, especially those from 2025.
1d
A dormant volcano in Ethiopia erupted after 10,000 years of silence. This event shows how the world’s little-known volcanoes pose the greatest threat.
1d
From Orion and Taurus to Auriga and Perseus, here are 10 easy sets of stars to find in the Northern Hemisphere’s winter night sky.
/ 1d
The Coconucos volcanic chain is a mountain ridge dotted with at least 14 volcano craters, including one that is active and erupted in December 2025.
Dec 25, 2025
1d
Conservationists are celebrating the rediscovery of flat-headed cats in Thailand after camera traps recorded the endangered feline for the first time in almost 30 years.
1d
Scientists in Paris discovered two new substances with incredible radioactivity. It earned them the Nobel Prize in Physics but would ultimately kill one of them.
2d
The manumea, a critically endangered ground pigeon and one of the closest living dodo relatives, has been spotted multiple times in a remote Samoan rainforest.
2d
How well do you know that organ between your ears? Test your recognition of neuroscience terms with this word search.
2d
Archaeologists discovered artifacts for sale in a thrift shop. They decided to create a college course on what to do about them.
Dec 24, 2025
2d
The James Webb Space Telescope blasted off from a launchpad in French Guiana in 2021, before reaching a spot in orbit a million miles away. It soon began breaking cosmology.
The modern Christmas themes of peace and joy were in short supply amid the ‘dislocation and danger’ of ancient Judea – as they are in today’s fractured world too.
Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging all explanations.
A double explosion, in which a dying star split, then recombined, may be a long-hypothesized but never-before-seen “superkilonova.”
Fifty years after a fossil skeleton of Australopithecus afarensis was unearthed in Ethiopia, we know so much more about how this iconic species lived and died.
/ 3d
AI slop, chatbots and agentic AI are changing the internet, and could transform it beyond recognition, experts say.
/ 3d
Do you know your mathematical equations from your scientific constants? If you know your numbers then try our daily quiz.
3d
DNA from soil could soon reveal who lived in ice age caves, research shows.
3d
Blood tests that look for over a dozen cancers are being developed. But how soon will they help patients?
3d
Discover the highlights of the Northern Hemisphere’s winter night sky with our guide to the top celestial sights to enjoy through binoculars between November 2025 and January 2026.
3d
In an unusual case, a man’s bladder swelled dramatically at its base, taking the shape of a Christmas tree.
Dec 23, 2025
Earth’s seasons look very different at locations not far from each other, 20 years’ worth of satellite data reveals.
4d
Some people in Ukraine weathered the harshest moments of the last ice age by creating shelters made partly of mammoth bones and tusks.
4d
By directly communicating with the brain, a new wireless device could someday help restore lost senses or manage pain without medications, its developers say.
/ 4d
A small study reveals that cats greet male owners more vocally than female ones. But the findings could be a result of cultural norms among the participants, rather than a universal cat behavior, scientists say.
NASA’s Mars Reconnaissance Orbiter spacecraft has just taken its milestone 100,000th photo of the Red Planet using its high-definition camera. It reveals a dark region of moving sand dunes.
4d
A 2,000-year-old palace in the Republic of Georgia and a 1,500-year-old church in Iraq suggest Zoroastrians coexisted with people of other religions.
4d
A new material called multiscale reduced graphene oxide could mean faster charging and power delivery than traditional batteries allow.
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