Science

Ancient scroll's hidden contents revealed through infrared imaging
More than 200 years ago, a scroll damaged by the eruption of Mount Vesuvius was unrolled and pasted onto cardboard, even though it had writing on the back. New imagery shows some of what's long been hidden.
Elon Musk unveils SpaceX's new Starship, designed to fly to the moon, Mars and beyond
Calling it "the most inspiring thing" he's ever seen, SpaceX's CEO talked up his company's big innovation and plans to fast-track production of the spacecraft. He hopes to fly passengers by next year.
As made-to-order DNA gets cheaper, keeping it out of the wrong hands gets harder
Labs are churning out more and more synthetic DNA for scientists who want to use it to reprogram cells. Some say the technology has outpaced government safety guidelines put in place a decade ago.
North America has lost 3 billion birds, scientists say
Researchers estimate that the bird population has fallen by a quarter since 1970. More than 90 percent of the loss can be attributed to just a dozen bird families, including sparrows, blackbirds and finches.