For most people, April 17 was memorable if only because that was the deadline for filing their federal income tax returns. But in D.C. we’ll remember April 17, 2012 as the day we saw the Space Shuttle Discovery.

Space Shuttle Enterprise sets off to New York today, where it will join the collection at the Intrepid Sea, Air and Space Museum.

Space Shuttle Enterprise isn’t go anywhere just yet—today’s foul weather has delayed a scheduled flight up to its new home in New York.

After Tuesday’s spectacular Space Shuttle Discovery flight over the region, thousands traveled to the Udvar-Hazy Center yesterday to welcome the shuttle and say goodbye to the Enterprise.

With space shuttle Discovery settling into its new digs at the National Air and Space Museum’s Udvar-Hazy Center, for the the current occupant of the hangar-turned-museum at Dulles International Airport, it’s time to go. Boldly.

After yesterday’s Space Shuttle Discovery fly-over of D.C., plenty of people wondered how exactly a 747 could fly with a shuttle strapped to its back. Well, consider this—the people that would usually ride in a 747 are heavier than the shuttle was.

Thousands of residents and visitors in D.C. streamed onto the National Mall, Hains Point, the Georgetown waterfront and just about any place with an open view of the sky this morning to see Space Shuttle Discovery make one last trip before it reaches its final resting place at the Udvar-Hazy Center of the National Air and Space Museum in Dulles.

We’ve already got a ton of great pictures of today’s Space Shuttle Discovery fly-over, but now the Smithsonian sends along a video of the day’s events.

Some people watching today’s flyover by the Space Shuttle Discovery mixed the ship up with the Challenger, which was destroyed during takeoff in January 1986.

It’s 9:30 a.m. Do you know what you might be missing outside? A space shuttle fly-over, to be exact, so look towards the Potomac River during the next 15 minutes and see if you spot it.