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Researchers have made a remarkable discovery in the Black Sea, where a team of underwater archaeologists have located a shipwreck that dates back more than 2400 years . The Greek merchant vessel is believed to be the oldest known intact shipwreck in the world, predating the rise of the Roman Empire and the birth of Christ. According to reports, the ship is located off the coast of Bulgaria and rests at a depth of about 2000 meters (6561 ft). That great depth has helped in the preservation process, as the lack of oxygen in the water helps to greatly slow down the degradation of organic material. Of course, the Greek vessel is mostly made of wood and is in remarkably good condition considering its age. Using a remotely-controlled vehicle to examine the wreckage, the archaeologists were able to see plenty of details. For instance, the 23-meter (75 ft) ship still has its mast intact and rowing benches are still visible on its deck. The rudder is still in one piece as well and there are eve...

We've written about how a high-tech device known as lidar has helped archaeologists locate lost cities and other ancient structures in the past, but those findings were small potatoes compared to what is going on in the jungles of Guatemala at the moment. A team of researchers say that the laser-powered technology has helped them conduct the largest survey of the region ever, and what they found is simply stunning. Lidar is typically mounted on an aircraft and uses lasers to map the surface of the planet from above. Those lasers can actually penetrate the thick jungle canopy to see what sits underneath, giving researchers a better understanding of what man-made structures may be lurking there covered by hundreds �� or even thousands �� of years of growth. According to a new study published in Science magazine , a recent research survey completed in Guatemala was the largest use of lidar ever. When the survey was completed, archaeologists had mapped 61,480 distinct structures unde...