All Stories
- Planetary Science
After 15 years on Mars, it’s the end of the road for Opportunity
After 15 years of exploring Mars, a dust storm led to the demise of NASA’s longest-lived rover.
- Quantum Physics
Photons reveal a weird effect called the quantum pigeonhole paradox
Quantum particles seem to disobey a fundamental principle of mathematics.
- Tech
A new 2-D material uses light to quickly and safely purify water
A newly designed material uses only light to speedily remove 99.9999 percent of microbes from water.
- Earth
Greenland may have another massive crater hiding under its ice
There may be yet another large crater buried beneath Greenland’s ice sheet. But it’s probably not related to the first one found last year.
- Tech
Robots are becoming classroom tutors. But will they make the grade?
Educational robots show promise for helping kids in the classroom or at home, but researchers are still figuring out how these bots should behave.
- Health & Medicine
Congo’s Ebola outbreak is a testing ground for new treatments
The first multidrug clinical trial of Ebola treatments is underway amid an outbreak in Congo.
- Archaeology
The spread of Europe’s giant stone monuments may trace back to one region
Megaliths spread across the continent due to seafarers’ influence, researcher says.
- Animals
A rare, ancient case of bone cancer has been found in a turtle ancestor
A 240-million-year-old fossil reveals the oldest known case of bone cancer in an amniote, a group that includes mammals, birds and reptiles.
- Artificial Intelligence
Readers marvel at AI, space missions and wombat poop
Readers had comments and questions about defining artificial intelligence, the New Horizons space mission and more.
- Neuroscience
Brain discoveries open doors to new treatments
Editor in Chief Nancy Shute discusses the history of neuroscience and new techniques scientists are using to influence the brain.
- Health & Medicine
Brain-zapping implants that fight depression are inching closer to reality
Researchers are using electric jolts to correct the faulty brain activity that sparks depression.
- Astronomy
Ultima Thule is shaped like two lumpy pancakes
Scientists are rethinking the shape of the space rock, once thought to be a snowman.
