A metal detectorist in Belgium has unearthed a fragment of a mysterious bronze artifact known as a Roman dodecahedron that is thought to be more than 1,600 years old. More than a hundred of the puzzling objects — hollow, 12-sided geometric shells of cast metal about the size of baseballs, with large holes in each … Read more
The world’s most notorious pirates terrorized the seven seas and amassed huge riches between the 16th and 19th centuries. Many of these ship plunderers remain famous to this day, but they were very different from the often-friendly pirates seen in the “Pirates of the Caribbean” movie franchise. Many of history’s most famous pirates began as … Read more
Scientists have created a tiny “Terminator 2”-like robot that can melt and resolidify itself on command, enabling it to easily escape from confined spaces. To make the phase-shifting robot, scientists embedded microscopic chunks of magnetic neodymium, boron and iron into liquid gallium (a metal with a low melting point) and left it to solidify. And … Read more
NASA has revealed plans to create a nuclear-powered rocket that could send astronauts to Mars in just 45 days. The agency, which has partnered with the Pentagon’s Defense Advanced Research Projects Agency (DARPA) to design the rocket, announced on Tuesday (Jan. 24) that it could build a working nuclear thermal rocket engine as soon as … Read more
A “replica” sword that has been part of the collection at the Field Museum in Chicago for nearly a century is actually a 3,000-year-old artifact from the Bronze Age. Curators made the shocking discovery while preparing for an upcoming exhibition called “First Kings of Europe.” The 3-foot-long (91 centimeters) bronze sword had been in storage … Read more
Young stars are surrounded by chaos: Clouds of gas, dust and ice swirl about in a so-called protoplanetary disk. And when gravity binds this material together, planets are born. Using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, researchers developed a new technique to measure and date infant exoplanets forming in these protoplanetary disks. By … Read more
Dust collected from the surface of an ancient, peanut-shaped and “potentially-hazardous” asteroid has revealed that some space rocks are much bouncier and harder to destroy than first thought — posing concerns about Earth’s long-term safety. The analysis of three tiny dust particles — gathered from the surface of the 1640-foot-long (500 meters) rubble pile asteroid … Read more
Are aliens using a quirk of the sun’s gravity to transmit information through an interstellar communication network? For the first time ever, astronomers explored this intriguing possibility and scanned for signals coming from hidden nonhuman probes orbiting the sun. So far, the method hasn’t turned up signs of spacefaring aliens, but it represents a promising … Read more
Once life gains even the tiniest foothold on a planet, it may have the power to transform that world, forcing us to broaden our definition of “habitable,” new research suggests. We don’t really know where life might arise. We have only one example of a life-hosting planet, Earth, which started to get interesting perhaps only … Read more
An elusive object in space has posed a riddle for scientists. It looks like a black hole. It acts like a black hole. It may even smell like a black hole. But it has one crucial difference: It has no event horizon, meaning that you can escape its gravitational clutches if you try hard enough. … Read more
