Space shuttle launch, royal wedding happening on same day

(CBS/AP) What's more important: a wedding so lavish that it might be on another planet or a group of astronauts who hope to one day visit another planet?

Pictures: Prince William and Kate Middleton
Special section: The royal wedding

Luckily, television viewers won't have to make that gut-wrenching decision on April 29, which is the date of the space shuttle Endeavor's final launch and the royal wedding of Prince William and Kate Middleton.

Both events promise to have plenty of star power. 

Kanye West, Elton John, and Paul McCartney are rumored to have made the royal guest list. On the shuttle side, you have, well, actual stars. Also, Mark Kelly, the husband of wounded congresswoman Gabrielle Giffords, will be at the helm.

Both events come with hefty price tags.

The shuttle will deliver a $2 billion physics experiment to the international space station while royal watchers expect the British nuptials to cost more than $150 million. And some analysts fear the extended holiday planned by the British government could actually cost the economy more than $8 billion in lost revenue.

Ouch.

The good news, at least for viewers, is that the two events won't overlap. Royal wedding coverage could start as early as 4 a.m. Eastern in the United States with the ceremony starting at 6 a.m. Eastern. The shuttle launch, if all goes to plan, will be at 3:47 p.m. Eastern.

Let's hope the stars align.