The countdown clock has been reset once more for Enterprise.
The space shuttle prototype has a big move to New York coming up in its future, but that flight's now been pushed back for the second time.
Bad weather delayed Monday's flight. NASA conducted another weather review Tuesday in hopes of a flight for Wednesday -- but now weather isn't looking so great that day, either.
Now NASA is hoping to fly the Enterprise out of here Friday morning, on the back of the same modified 747 that brought Discovery to the D.C. area last week.
Once all is clear Friday (assuming it is), Enterprise will leave Dulles between 9:30 and 11:30 a.m.
It'll head to the John F. Kennedy International Airport, flying at a relatively low altitude over parts of the New York metro area, much as Discovery did over our region April 17.
The two shuttles aren't strangers: They went nose-to-nose during a ceremony last week to welcome Discovery to the Air and Space Museum's Udvar-Hazy Center.
Discovery's arrival, however, meant there's no more room for the Enterprise, which will make a new home in Manhattan's Intrepid Sea, Air and Space Museum.
Those who have looked the two shuttles side-by-side have probably noticed the two look very different. Enterprise was a prototype that never went into orbit; Discovery flew 39 missions -- more than any other shuttle in the fleet -- and launched the Hubble into space.
"It's a little more weather-beaten," said Valerie Neal, space shuttle curator of the Air & Space Museum, referring to the Discovery. She noted that Discovery is now more beige and charcoal gray than its orginal white and black.
The Enterprise, meanwhile, has preserved its original good looks.