sciencealert.comadded August 2026
ScienceAlertby Esra Öz20d ago
The brain keeps one of the strictest guest lists in the body. Oxygen and nutrients may enter. Toxins, germs, and other substances traveling through the blood are turned away.
ScienceAlertby Carly Cassella21d ago
Two remote Indigenous communities in the Bolivian Amazon are said to have some of the lowest rates of dementia in the world.
ScienceAlertby Michelle Starr21d ago
When you gaze into the abyss, so Nietzsche proclaimed, sometimes the abyss gazes back into you. And if you pummel Earth's crust with the most powerful class of explosives humanity has ever devised...
ScienceAlertby David Nield21d ago
Since a 19th century theory put forward by German physiologist Ewald Hering, color scientists have considered the hues red, yellow, green, and blue to be special – something you can still see in...
ScienceAlertby David Nield21d ago
Quantum computers already exist and are advancing quickly, but scientists predict there's much, much more to come from them – and a new study points the way to another significant step forward in...
ScienceAlertby Michael Irving21d ago
Geologists have discovered that the African continent will split apart sooner than we thought. An active rift has reached a "critical threshold" and will soon break apart, forming a new ocean.
ScienceAlertby Esra Öz21d ago
You stumble into the kitchen half awake and start brewing coffee. Before you have taken a single sip, the aroma fills the room. The morning seems more manageable. But what just happened?
ScienceAlertby Jess Cockerill21d ago
A German WW1 submarine known as SM UC-30 was returning home in April 1917 when it hit a British mine and sank.
ScienceAlertby Carly Cassella21d ago
Scientists have identified two simple body measurements that together are linked to nearly double the risk of death. Neither one is BMI.
ScienceAlertby Carly Cassella21d ago
A surprising link between oral health and the brain is growing stronger by the year. In a long-term study in Japan, bleeding and receding gums were linked to a substantially higher risk of...
ScienceAlertby Michelle Starr22d ago
Our beautiful big round ball of a planet is not, in fact, a perfect sphere. As it spins about on its axis, whirling around the Sun, rotation causes it to bulge at the equator and flatten at the...
ScienceAlertby Michelle Starr22d ago
In the darkest depths of Earth's oceans, surprises are expected. For humans, it's one of the most inhospitable environments our planet has to offer, and we've seen very little of what's down there...
ScienceAlertby Michelle Starr22d ago
The biggest barrier to understanding the human brain is the human around it. Scientists can't exactly tinker around in someone's gray matter while that someone is still using it.
ScienceAlertby Esra Öz22d ago
When we look at the night sky, darkness seems to fill the spaces between the stars. But what if some of the most powerful objects in nearby galaxies are hiding inside that darkness – not because...
ScienceAlertby Jess Cockerill22d ago
Dinosaurs are not known to have a taste for cold climates. And yet, somehow, more than 250 fragments of massive dinosaur eggshells have been discovered in the Upper Cretaceous (Maastrichtian)...
ScienceAlertby Michelle Starr22d ago
In the unexplored expanses deep below the ocean waves, life finds many ways to thrive. Sometimes that means evolving to metabolize volcanic chemistry instead of sunlight.
ScienceAlertby Ivan Farkas22d ago
Of all recorded weather disasters, hurricanes cause the most catastrophic amounts of personal loss and infrastructure damage across the US.
ScienceAlertby Peter Dockrill22d ago
The sticky proteins amyloid-beta and tau are hallmark features of Alzheimer's disease, but they're not the only contributors to the condition.
ScienceAlertby Peter Dockrill23d ago
The true scale of osteoporosis is difficult to fathom. The progressive bone-weakening disease is estimated to affect as many as 500 million people worldwide, triggering up to 37 million fragility...
ScienceAlertby Esra Öz23d ago
If you think you know what DNA looks like, there may be a surprise hiding in your blood. DNA instantly brings to mind its famous double helix.
top 28%