Paleontologists have uncovered a miniature world of sea creatures whose tiny guts, eyes and even brains remain visible 462 million years after they perished
The first timekeeping devices were probably natural materials lost to the ages, but the ancient Egyptians were the first to leave records of their timekeeping methods
A severe drought that has led to near-famine conditions in the Horn of Africa would not have happened without the influence of climate change, a new analysis finds
The Comstock Act is part of a federal case over access to abortion pills. A historical science-fiction writer weighs in on the legacy of 19th-century prudishness