All Stories
- Tech
50 years ago, a balloon circumnavigated the world for science
A 1973 high-altitude flight kicked off an era of useful stratospheric balloon science. Some scientists worry that heightened concerns over alleged spy balloons might hamper that.
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The many challenges of exploring hidden realms
Editor in chief Nancy Shute discusses the challenges of studying the invisible or inaccessible, from the seafloor to hidden caverns buried underneath solid ice.
- Climate
The summer of 2021 was the Pacific Northwest’s hottest in a millennium
Tree ring data from the Pacific Northwest reveal that the region’s average summer temperature in 2021 was the highest since at least the year 950.
- Humans
‘Period’ wants to change how you think about menstruation
Kate Clancy offers fascinating science and history about the uterus and menstruation in her book, Period: The Real Story of Menstruation.
- Animals
Hibernating bears don’t get blood clots. Now scientists know why
People who sit still for hours have an increased risk of blood clots, but hibernating bears and people with long-term immobility don’t. A key clotting protein appears to be the reason why.
- Health & Medicine
Estrogen in birth control could be cut way back, a study suggests
Delivering an extra low dose of estrogen, or a combination of estrogen and progesterone, at a specific time of the menstrual cycle may prevent ovulation.
- Climate
‘Flash droughts’ are growing increasingly common
Droughts are forming faster more often in much of the world due to climate change, a new study finds.
- Astronomy
The first black hole portrait got sharper thanks to machine learning
A machine learning technique filled in data gaps in the image of M87’s black hole, resulting in a thinner ring.
- Paleontology
Newfound bat skeletons are the oldest on record
The newly identified species Icaronycteris gunnelli lived about 52.5 million years ago in what is now Wyoming and looked a lot like modern bats.
- Physics
Videos of gold nanoparticles snapping together show how some crystals grow
Real-time electron microscopy shows gold nanoparticles tumbling and sliding in a fluid before snapping together in crystalline structures.
- Tech
How ChatGPT and similar AI will disrupt education
The new chatbot ChatGPT and other generative AI encourage cheating and offer up incorrect info, but they could also be used for good.
- Animals
Freshwater leeches’ taste for snails could help control snail-borne diseases
A freshwater leech species will eat snails, raising the possibility that leeches could be used to control snail-borne diseases that infect humans and livestock.
