NASCAR president Mike Helton says the Daytona 500 will start Monday night at 7 p.m. ET. Heavy rain soaked Daytona International Speedway on Sunday, forcing NASCAR to postpone the event for the first time in its 54-year history.

Canadian researchers have discovered a bizarre flower-like creature which lived in an ancient sea that covered part of Western Canada more than 500 million years ago.

The International Space Station may provide the setting for a 500-day pretend trip to Mars in a few years, NASA says.