A massive impact crater the size of the city of Paris has been discovered under the ice sheet in northern Greenland. Partially hidden under the Hiawatha Glacier, this 31-kilometer (19.3-mile) crater is estimated to be no older than three million years, but the researchers believe that it was formed much more recently, possibly as late as 12,000 years ago, making it the largest impact crater of its kind on Earth.
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The wrecks of several warships that were sunk during the Battle of the Java Sea in 1942 have mysteriously disappeared, after marking the graves of their respective sailors for nearly three-quarters of a century. Officials are blaming commercial scrap metal scavengers for looting the site, having pilfered ships that belonged to the American, British and Dutch navies. But at least one salvage expert is skeptical about this being the work of ordinary scavengers.
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The study of planets found outside our solar system has been booming over the past few decades, with over two-thousand of these fascinating exoplanets having been cataloged. One of the next obvious steps for researchers is to attempt to detect signs of life on them, although the technology to directly determine if anything is living that far away has yet to be developed. In the meantime, studies are underway to help determine the best candidates to focus on, using what we know about life on Earth, and what information we can currently gather from the exoplanets themselves.
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