HeyJaredFiona MacDonald
- Indexed articles, last 90 days
- 24
- Latest publication
- Sep 13, 2026
- Outlet visibility, for Sciencealert
- Top 50K sites
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- Jul 21, 2026
Latest articles
Astronomers Spotted a 'Bear' on Mars (opens the original)
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On 12 December 2022, an orbiter traveling 251 kilometers (156 miles) above the southern highlands of Mars photographed a hill. It should have been an unremarkable shot – one of tens of thousands NASA's Mars Reconnaissance Orbiter HiRISE camera has captured of the Martian surface since 2006. Instead, something seemed to be looking back. Between them, a pale ridge tapered down like an adorable snout. The whole thing was ringed by a near-perfect circular crack, giving it the outline of a head. If y
What Do You See? This Week's Monday Microscope Mystery (opens the original)
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Familiar things can look very strange when viewed under a microscope – which is why each week we bring you a fresh microscope mystery to put your detective skills to the test. This week's mystery looks almost cosmic – a scatter of tiny, near-perfect spheres, like grains of metal that rained down from somewhere else entirely. Or is this actually something closer to home: a group of cells or pollen? There will be spoilers below, you have been warned! For a visual break, here's the mystery of a 17t
This 17th-Century Aristocrat Had an Ingenious Secret For Keeping Her Teeth (opens the original)
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In 1988, archaeologists cracked open a lead coffin inside the Château de Laval in northwestern France and found something peculiar. A woman who had been dead for more than 350 years, but whose teeth looked better than you would expect. But something in her mouth caught the team's attention: a strange metal fixture wound around her teeth. Nobody in 1988 had the tools to work out what it actually was, or why it was there. So the mystery went back into storage, along with the coffin. It took anothe
Running on 4 Hours of Sleep? This 20-Minute Fix Works Almost as Well as a Nap (opens the original)
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You already know the feeling: You've had maybe four hours of sleep, you've got a full day ahead of you, and coffee is only going to get you so far. Do you squeeze in a nap, or push through with a workout instead? A new study published in Proceedings of the National Academy of Sciences suggests that, when it comes to your memory, a nap and a 20-minute workout may actually have a similar impact. Researchers from McGill University in Canada kept 54 healthy young adults awake for a grueling 30 strai
Should We All Be Taking Probiotics Daily? An Expert Weighs in (opens the original)
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Probiotics are one of those pills that you see literally everywhere. You can get them on supermarket shelves, in pharmacies, even in your local health food store. There are endless products that have a label proudly extolling their probiotic content – pretty much anything even vaguely health-themed will probably have some reference to probiotics somewhere. There are millions of viral videos on every platform telling you to up your probiotic intake for everything from better gut health to better
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