On October 31, 2008, someone using the name Satoshi Nakamoto appeared on a cryptography mailing list with an idea that would eventually shake the financial world. A nine-page paper described Bitcoin, a digital money system that could operate without a bank standing in the middle. A few months later, the network was…
Late on January 20, 2008, a 37-year-old woman named Liu entered an apartment building in Yuanlin, Taiwan, with her 4-year-old daughter. A surveillance camera recorded them stepping into an elevator and riding toward the upper floors, preserving what would become the last confirmed images of the pair. Nothing violent…
In 2019, navigation systems watching traffic along the Texas Gulf Coast began showing something that should not have been possible. Ships still moving normally through familiar waters appeared on tracking screens to swing into strange circles miles offshore, while aircraft routes bent into shapes that did not match…
On the evening of March 26, 2018, people across Derbyshire looked up and saw something that seemed completely wrong. A huge, dark aircraft was moving dangerously low over the countryside, close enough to rooftops and treelines that several witnesses thought they were watching the final seconds before a crash. Yet the…
About 15,000 light-years from Earth, something in our galaxy keeps switching on. For roughly two minutes, it becomes incredibly bright in radio waves, gives off X-rays on almost the same schedule, fades away, and stays quiet until the whole thing begins again. The cycle takes about 44 minutes, and astronomers can…
Late one night in October 2015, a long-haul truck driver was moving freight along US-93 through the Nevada desert when lights appeared ahead. After miles of black highway it looked like exactly what he needed: fuel, food, and a place to stop. He turned toward them without realizing that the location would make far…
Far out in the North Atlantic, scientists anchored a research buoy above nearly five kilometers of ocean. The system had been built specifically to survive the Gulf Stream, where powerful currents can drag against miles of line with enormous force. The first deployment lasted a full year without failing. Its…
On October 19, 2017, astronomer Robert Weryk noticed a faint object racing through telescope images from Hawaii. Its path immediately stood out because it was moving too fast to remain trapped by the Sun. Whatever it was, it had arrived from somewhere beyond our solar system. Astronomers named it 1I/2017 U1 ‘Oumuamua.…
On July 4, 2013, several fishermen were out on Table Rock Lake near Kimberling City, Missouri, when someone in the boat noticed movement along the shoreline. Through the trees stood a dark upright figure that was difficult to identify from the water. Instead of disappearing immediately, it kept moving long enough for…
In January 2017, a radiation monitor in northern Norway picked up something that should not have been drifting through the winter air. The material was iodine-131, a radioactive form of iodine used around nuclear reactors and in some medical treatments. The amount was tiny, but its presence immediately raised a…