Dust storm grounded Mars helicopter, but it's ready to fly again
One of the Red Planet's famous dust storms has kept the Mars helicopter Ingenuity grounded for two weeks, but the aircraft is scheduled for its 19th flight as early as Sunday, according to NASA. Around the first of the year, NASA planned Flight 19 of the tiny, 4-pound helicopter on Jan. 5. But weather forecasters on Ingenuity's team in California noticed signs of the approaching dust st