Registration opens today for the first Tweetup at NASA’s Langley Research Center.

The NASA Langley Tweetup is scheduled for 10 a.m. to 4 p.m. ET, Tuesday, Nov. 8.

Twitter followers can go online to register – between 10 a.m. today to 5 p.m., Thursday, Oct. 13 – for a behind-the-scenes tour of the country’s oldest civilian aerospace laboratory. NASA will randomly select 50 participants from online registrants.

The Tweetup will give participants the chance to have lunch with an astronaut, interact with NASA experts, and tour a wind tunnel, lunar habitat concept and the Landing and Impact Research Facility, where Neil Armstrong trained for his historic landing on the moon.

Established in 1917, Langley’s current role at NASA includes aviation, science and space research. Langley researchers are testing space capsules for water landings, developing technologies to make aircraft faster, quieter, safer and greener, and studying Earth’s atmosphere to understand global climate change.

Because NASA Langley is a government facility with restricted access, the Tweetup is open only to U.S. citizens.

For more information about the Tweetup and to register, visit: http://www.nasa.gov/tweetup

For more information about NASA’s Langley Research Center, visit: http://www.nasa.gov/langley