2024 YR4, the “city-killer” asteroid that briefly made headlines last year due to a small but non-zero chance that it may hit the Earth, may soon have increased odds of striking our Moon. Asteroid 2024 YR4 was first discovered on December 27, 2024, by the Asteroid Terrestrial-impact Last Alert System (ATLAS) telescope in Chile. Initial […]
“A Wave Of Poo”: People Reversed The Direction Of The Chicago River’s Flow In 1900
Faced with filthy waterways and a worsening public health crisis, Chicago’s authorities took a radical step to literally reverse the flow of the Chicago River in 1900. Needless to say, the move did not help relations with the city of St Louis, whose residents suddenly found themselves downstream of a river brimming with garbage, human […]
Watch Out For Aurorae Tonight – The Strongest Solar Flare Of 2025 So Far Just Erupted From The Sun
The Sun has just fired off its most powerful solar flare of 2025, causing radio blackouts across half the globe. As the barrage of charged particles makes its way toward Earth, the aurorae borealis – or Northern Lights – could become visible at unusually low latitudes tonight. The rest of this article is behind a […]
First Radio Detection Received From Interstellar Object 3I/ATLAS. What Does That Mean?
Astronomers at the MeerKAT radio telescope in South Africa have reported the first radio detection from interstellar object 3I/ATLAS. First a recap for anyone who isn’t up to speed with our third interstellar visitor. On July 1, 2025, astronomers at the Asteroid Terrestrial-impact Last Alert System did their job beautifully, detecting an object whizzing through […]
“Drop Crocs”: Australia Once Had Ancient Crocs That Climbed Trees To Jump On Their Prey
Paleontologists have confirmed their suspicions that Australia once had crocodiles that roamed forests and probably climbed trees, to jump on potential prey. Although evidence for this conclusion has come from several sources, the final piece of the puzzle was provided by an apparently unlikely source: eggshells. Australians are fond of scaring tourists with tales of […]
How We Know Interstellar Object 3I/ATLAS Is Not An Alien Mothership
On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) did its job superbly and spotted a sizeable object as it hurtled its way through the Solar System, 670 million kilometers (410 million miles) from the Sun. By studying the object’s trajectory, it was soon confirmed to be an interstellar object, meaning an object […]
First-Of-Its-Kind Evidence Shows Bees Can Learn “Morse Code” – Well, Kinda
There are, in other words, plenty of potential candidates. But a new study presents an alternative contender: the humble bumble. “We wanted to find out if bumblebees could learn the difference between […] different durations” of flashing lights, explained Alex Davidson, a PhD student in the Queen Mary University of London’s School of Biological and […]
Humans Have A “Seventh Sense” That Lets You Touch Things From A Distance
We all know the senses: there’s sight, smell, taste, touch, hearing, and the sixth senses A through F. Now, though, there’s a “seventh” on the cards – and it’s spookier than you might expect. It’s the first time that the new sense, called “remote touch”, has been studied in humans – and “it changes our […]
The Longest Place Name Has 111 Letters – And It’s Visited By Millions Of People Each Year
The place with the longest name in the world isn’t exactly a backwater village holding onto an ancient, obscure linguistic tradition. In fact, it’s a booming metropolis of skyscrapers that’s home to over 11 million people and welcomes around 22 million international visitors every year. The rest of this article is behind a paywall. Please […]
We Now Know Why Neanderthal Faces Looked So Different To Our Own
Despite being almost genetically identical to modern humans, Neanderthals had much chunkier faces, with big noses, protruding brows, and large, powerful jaws. Amazingly, these striking differences in physical appearance result from just a few tiny alterations in the so-called “dark” region of our genome. The rest of this article is behind a paywall. Please sign […]
Why Does Africa Have So Many Of The World’s Largest Land Animals?
While Europe and North America might be home to bears and wolves, they are lacking in the even larger species that roam across the continent of Africa. Even Asia and Australasia, with their freaky-looking marsupials, can’t compete with the size and volume of the world’s largest land animals. But why are there so many in […]
This “Ant-Mimicking” Spider Produces Its Own Kind Of Milk And Nurses Its Babies
How do you milk a spider? It’s a question you’ve probably (read: hopefully) never asked yourself, but one that the ant-mimicking spider Toxeus magnus has got us thinking about. You see, when the momma spider’s eggs hatch and she finds herself with a clutch of bouncing baby spiderlings, she does something remarkable: she produces milk. […]
1972 Was The Longest Year In Modern History – Here’s Why
The year 1972 was a long one – and not just for Richard Nixon, whose ill-fated presidency was starting its death spiral amid the Watergate scandal. The Godfather hit cinemas, humans walked on the Moon for the last time in the 20th century, and Bloody Sunday inflamed “The Troubles” in Northern Ireland. But it wasn’t […]
Why Did “Magic Mushrooms” Evolve To Be Hallucinogenic – What’s In It For The Mushrooms?
Magic mushrooms, or specifically psilocybin, the active compound contained within these fungi, has gained a lot of attention since the mid-20th Century as a promising treatment for all sorts of conditions, from addiction to depression and anxiety. Hell, it even appears to be useful for providing relief for the existential fear of cancer patients. Given […]
Why Can’t You Domesticate All Wild Animals? The Process Relies On 6 Characteristics Few Mammals Possess
During 2020, I – like many people in lockdown – was desperate for a pet. You can imagine the temptation, then, when a wee mouse voluntarily wandered into my living room day and night. An opportunity? I thought, but I stopped myself. Deep down, I knew all that would happen was I’d end up covered […]
Meet Some Of Earth’s Mightiest Predators
IFLScience needs the contact information you provide to us to contact you about our products and services. You may unsubscribe from these communications at any time. For information on how to unsubscribe, as well as our privacy practices and commitment to protecting your privacy, check out ourPrivacy Policy Deborah BloomfieldSource Link: Meet Some Of Earth’s […]
Canada Officially Loses Its Measles Elimination Status After Nearly 30 Years. The US Is Not Far Behind
After a significant outbreak of measles that began last year, Canadian health officials have confirmed that the country has lost its measles elimination status, ending a streak that had been intact since 1998. “The Pan American Health Organization (PAHO) has notified the Public Health Agency of Canada (PHAC) that Canada no longer holds measles elimination […]
Two “Anomalies” Detected In Egypt’s Menkaure Pyramid Using Electrical Resistance Tomography
A team of researchers studying the pyramids of Giza using non-invasive techniques believes they have identified two new “anomalies” in the Menkaure Pyramid. The Menkaure Pyramid, built for Pharaoh Menkaure, who ruled between 2490 and 2472 BCE, is the smallest of the pyramids at the Giza site in Egypt. It is also the least-disturbed of […]
Invasive “Tree Of Heaven” Unleashes Hell As “Double Invasion” Sweeps Across Virginia
Scientists are upping their game in the fight against a “double invasion” that’s currently sweeping across Virginia in the US. Here, the invasive “tree of heaven” is providing prime real estate for another invader: the spotted lanternfly. The tree of heaven, known to science as Ailanthus altissima, was brought to the United States back in […]
Hamman’s Crunch: A Man Covered His Nose And Mouth Whilst Sneezing And Ended Up In Hospital
Sneezing is not an activity you’d deem particularly risky. This semi-autonomous mechanism of expelling irritants and pathogens is generally just a fairly irritating thing you have to do whilst alive, like tax returns and pretending to enjoy baseball. But sneezing can go a little wrong, and occasionally land the sneezer in hospital. One review, which […]



















