Latest Opinion
The WHO penned the world's first pandemic agreement — but the US isn't signing
Opinion The U.S. withdrew from treaty negotiations on President Trump's first day in office.
'The Martian' predicts human colonies on Mars by 2035. How close are we?
Opinion NASA hasn't landed humans on Mars yet. But thanks to robotic missions, scientists now know more about the planet's surface than they did when the movie was released.
How much of your disease risk is genetic? It's complicated.
Opinion Environmental factors such as lifestyle and the medications you take influence the effects your genes have on your body — and can clarify how diseases develop.
Does light lose energy as it crosses the universe?
The speed of light is the fastest anything can travel. What happens to a photon from a galaxy 25 million light years away on its journey toward Earth?
There's 90,000 tons of nuclear waste in the US. How and where is it stored?
The decades-long struggle to find a permanent place to dispose of nuclear waste will continue, probably for many years to come.
Colossal's de-extinction campaign is built on a semantic house of cards with shoddy foundations — and the consequences are dire
Opinion "Dire wolves" created by Colossal Biosciences were pegged as "the first animals in history to be brought back from extinction." But that all depends on your definition of de-extinction — and Colossal's definition isn't the same as everyone else's.
Viking Age women may have wielded weapons when pregnant, sagas and ancient artifacts hint
Opinion Despite its central role in human history, pregnancy has often been overlooked in archaeology.
Was it a stone tool or just a rock? An archaeologist explains how scientists can tell the difference
Opinion With a little guidance and a lot of practice, even you can make stone tools the way our oldest ancestors did — and learn to recognize the signs of a deliberately made tool.
'Murder prediction' algorithms echo some of Stalin's most horrific policies — governments are treading a very dangerous line in pursuing them
Opinion The U.K. government is developing a program that seeks to identify murderers before they commit the ultimate crime. The real-world application of this type of tool will have devastating consequences.
