Are free radicals really that bad for you?
Free radicals are highly reactive molecules that are missing an electron. They get a bad rap, but could they actually have any benefits?
Category: Science
Death Valley shrub rearranges its insides to thrive in one of the hottest places on Earth
Heat-loving plants that thrive in California’s Death Valley could hold the key to growing crops in a changing climate.
Today’s biggest science news: CDC in turmoil | Moss survives space | Comet 3I/ATLAS images
Friday, Nov. 21, 2025: Your daily feed of the biggest discoveries and breakthroughs making headlines.
Switching off AI’s ability to lie makes it more likely to claim it’s conscious, eerie study finds
Leading AI models from OpenAI, Meta, Anthropic and Google described subjective, self-aware experiences when settings tied to deception and roleplay were turned down.
How to see a rare conjunction of Mercury and Venus this month
The inner planets Mercury and Venus will both be visible in the east-southeast sky before sunrise on Tuesday, Nov. 25.
‘A forest with bonobos has never been so quiet’: Most extreme case of violence in ‘hippie’ species recorded, with females ganging up on male in unprecedented attack
Female bonobos routinely form coalitions to stamp out threats from males, but the level of violence in this attack was unprecedented.
Meet 5 scientists reshaping the way we understand the world
These five early- and mid-career researchers are shaking up what we know about the Arctic, black holes and beyond.
Building a better skin barrier
Skin is a barrier meant to keep small invaders out. Products making their way across it should boost that mission.
Scientists find rare tusked whale alive at sea for the first time — and shoot it with a crossbow
Researchers have identified ginkgo-toothed beaked whales alive at sea for the first time after years of searching, and in doing so solved the mystery of
Watch the best nature documentaries and science shows with these streaming deals
Get all the science, nature and history shows you love cheaper with our round-up of the best streaming deals for science lovers in 2025.
A looming ‘insect apocalypse’ could endanger global food supplies. Can we stop it before it’s too late?
Insect populations are in steep decline, which could endanger the food supply. But there are things we can do to reverse the trend.
Science has made America great. Is that era over?
Expectations of continued success for American science were shaken this year when the Trump administration cut billions of dollars in funding and fired thousands of
A new dinosaur doomsday exhibit showcases survival after destruction
The American Museum of Natural History’s “Impact: The End of the Age of the Dinosaurs” examines how an asteroid impact shaped life as we know
NASA’s Quesst Mission Marks X-59’s Historic First Flight
NASA’s X-59 quiet supersonic research aircraft lifts off for its first flight Tuesday, Oct. 28, 2025, from U.S. Air Force Plant 42 in Palmdale, California.