In the ninth century A.D., the Maya abandoned the great city of Tikal after hundreds of years of prosperity and expansion. Researchers have long sought to explain how and why the city collapsed, but despite extensive study of the site, unanswered questions remain. Continue reading Why Did the Maya Abandon the Ancient City of Tikal?
We all know the benefits of a daily dose of physical activity by now. Not only does exercise tone your body so you can wear your favorite jeans, it even helps with your memory. But when it comes to retaining new information, working out may not do much for people who were exposed to high levels of mercury before birth, according to a new study that was just published in thejournal Environmental Health Perspectives.
Gold may be beautiful and valuable, but some mining operations to extract the precious metal are seriously dirty.
There are a lot of good reasons to believe this watch that uses flowing liquid mercury to show the time is fake. A low-quality video, a questionable website, and product shots that look like photocopies of photocopies. But that doesn’t stop us from wanting a watch that looks like the T-1000 strapped to your wrist.
If you tried to to watch Mercury crossing in front of the Sun yesterday, chances are you didn’t get as good a view as NASA’s Solar Dynamics Observatory. Mercifully, the space agency has put together a stunning time lapse so you can watch the spectacle again.
Something about the planet Mercury doesn’t sit right with astronomers: It’s too dark. Darker than the Moon, despite containing way less iron. But at long last, scientists have solved the mystery—and their discovery is shedding light on the fascinating past of the Solar System’s innermost planet.
Fog is a hazard to ships, but it might also be a problem for the food web.