Science

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.
Deadly brain cancers act like 'vampires' by hijacking normal cells to grow
Researchers say certain brain cancers tap electrical signals from healthy cells to fuel their growth. The finding could lead to treatments for deadly tumors like the one that killed Sen. John McCain.