Anak Krakatau erupts ash and volcanic gases in this Sept. 5, 2026, image acquired with the OLI (Operational Land Imager) on Landsat 8. Eruptions are a regular occurrence at Anak Krakatau, a small volcano between the Indonesian islands of Java and Sumatra. Much of its activity remains relatively mild, but it occasionally puts on more
We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › It feels like Amazon’s summer Prime Day sale was just a few days ago, but it’s already time for another round. The fall Big Deal Days sale runs October 6th and 7th, but you can save
The Corps of Discovery Expedition set out in 1804, directed by President Thomas Jefferson to survey the United States’ newly acquired Louisiana Purchase. The exploration forms a core piece of early U.S. history. Picture a scene from the journey: It’s a cool morning, the silence punctuated by birdsong and the rustle of the breeze through
Mapping microproteins in the brain might help to understand, and treat, Alzheimer’s disease.Credit: Zephyr/SPL More than 1,000 previously overlooked ‘microproteins’ have been found in samples of human brain tissue, providing researchers with the most comprehensive database yet to study these hidden molecules inside the human brain. Dozens of the tiny proteins showed altered expression in
The Navier–Stokes equations describe the motion of fluids and have many applications, including in aircraft design.Credit: Getty Last Tuesday is likely to go down as the start of an epoch in the history of mathematics. On 8 September, an artificial-intelligence firm announced it had solved one of the Millennium Prize Problems — among the hardest,
Over two days in June, Emily Aguilar-Pine drove 2,500 kilometres from Bozeman, Montana, to Austin, Texas, with one of microbiology’s most coveted organisms in the back of her mother’s SUV. Inside some protective packaging, labelled ‘hopes and dreams’, was a small bottle containing about 30 millilitres of what looked like clear liquid, but that in