In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

It’s well-known by now that invasive Burmese pythons have become established in the Florida Everglades. The first one was found in 1979 and by the year 2000 they’d fully established reproducing ...