Nasa Mars announcement

Nasa is set to make one of the biggest announcements in its history later, teasing the press conference with only a note saying that it will announce a Mars mystery has been solved. "NASA will detail a major science finding from the agency’s ongoing exploration of Mars," it said in a statement. Many have expected that the event will bring an announcement that it has found water on Mars — a discovery that could lead to a whole range of new findings. The conference begins at 4.30pm UK time, or 11.30am in Nasa's local Eastern Daylight Time.