How big can a planet get? By Natalie Hinkel Why isn't there an endless variety of planets in the universe? An astrophysicist explains why planets only come in two flavors.
Only one lab in China can safely handle the new coronavirus By Nicoletta Lanese As an escalating viral outbreak unfolds in China, only one lab in the country meets the required biosafety standards needed to study the new disease.
Death toll from new coronavirus spikes in just a day By Rachael Rettner The case count and death toll from a new coronavirus in China continue to climb.
Earth's oldest known meteor crash site found in Australian Outback By Brandon Specktor The world's oldest known impact crater has been in Western Australia for more than 2.2 billion years, a new study suggests.
To find intelligent alien life, humans may need to start thinking like an extraterrestrial By Adam Mann Anthropologist reveals a potentially big flaw in the Search for Extraterrestrial Intelligence (SETI).
Ancient never-before-seen viruses discovered locked up in Tibetan glacier By Laura Geggel A new technique for studying ancient microbes in glaciers has led to the discovery of previously unknown viruses.
Ancient Assyrian rock carvings in Iraq show procession of gods riding mythical animals By Tom Metcalfe Stunning ancient rock carvings that portray an Assyrian king paying homage to his gods amid a procession of mythical animals have been unearthed in the Kurdistan region in the north of Iraq.
What is the amygdala? By Nicole Haloupek The amygdala is often referred to as the "fear center" of the brain — but this name hardly does justice to the amygdala's complexity.
Scientists uncover new mode of evolution By Nicoletta Lanese Scientists have discovered a form of natural selection that doesn't rely on DNA.
1st case of new SARS-like virus in US By Rachael Rettner The new SARS-like virus that's causing an outbreak in China has now arrived in the United States.
Self-destructing dark matter may be flooding the sky with gamma-rays, study suggests By Brandon Specktor There's a faint gamma-ray background in the universe, and scientists now think it could be caused by dark matter.
A burst of gravitational waves hit our planet. Astronomers have no clue where it's from. By Yasemin Saplakoglu The signal doesn’t seem to match the most obvious causes.
How surgery in infancy led to a woman's stone 60 years later By Laura Geggel An unused piece of intestine cooked up some trouble for this woman.
Alopecia: Causes, symptoms & treatments for hair loss and balding By Laura Geggel Hair loss is typically considered the domain of aging men, but this equal-opportunity condition — which has many causes — can affect virtually anyone.
Were alien secrets hidden in Roswell and Area 51? 'Project Blue Book' UFO hunters investigate. By Mindy Weisberger A search for the truth behind UFO sightings leads to the discovery of government cover-ups.
Identity-Switching Neutrinos Could Reveal Why We Exist At All. But Can We Find Them? By Tim Childers Scientists are searching for a ghostly neutrino particle that acts as its own antiparticle. If they find it, the discovery could resolve a cosmic conundrum: Why does matter exist at all?
UFOs May Be Piloted by Time-Traveling Humans, Book Argues By Leonard David The great distances covered by visiting "aliens" may be ones of time rather than space, a recent book argues.
Ancient Australian Crystals Unlock History of Earth's First Magnetic Field By Rafi Letzter It was a lot more powerful than anyone believed.
Here's What Scientists Know About 'Screen Time' and Your Health By Byron Reeves, Nilam Ram, Thomas N. Robinson Conclusions about the effects of digital media, or "screen time," are often incomplete, irrelevant or wrong, scientists say.
