How Close Was That Lightning to the Shuttle?

By Nancy Atkinson - August 27, 2009 at 6:10 AM UTC | uncategorized
Shuttle-lightning.jpg

[/caption] If you're wondering why the first launch attempt for space shuttle Discovery was scrubbed early Tuesday morning, here's your answer. Yikes! But what a gorgeous picture! And of course, the second launch attempt early Wednesday morning was called off when instrumentation for an 8-inch fill and drain valve on the shuttle's external tank indicated the valve had failed to close. But yesterday, the valve functioned correctly five times during launch pad tests, NASA said.

That means NASA will likely go ahead with a launch attempt at 04:22 GMT (12:22 a.m. ET) on Friday.

But the anomaly remains unexplained, so it will be up to the mission management team to decide if the shuttle can fly as is, or if engineers need to know more about the issue. The decision won't be made, however until the MMT meets Thursday afternoon, just hours before the scheduled liftoff time. As the saying goes, there's a million parts on the shuttle and if only one is not working....

UPDATE:

Launch now is targeted for no earlier than 11:59 p.m. Friday, Aug. 28, to allow engineers more time to develop plans for resolving the issue with the valve.

See below for a close-up of the lightning shot, to see how close it actually came to the shuttle.

[caption id="attachment_38421" align="aligncenter" width="580" caption="Lightining strikes close to Discovery on the launchpad on Aug. 25, 2009. Credit: NASA/Ben Cooper. Click image for access to larger version."]

[/caption] Discovery's 13-day mission will deliver more than 7 tons of supplies, science racks and equipment, as well as additional environmental hardware to sustain six crew members on the International Space Station. The equipment includes a freezer to store research samples, a new sleeping compartment and the COLBERT treadmill. The mission is the 128th in the Space Shuttle Program, the 37th flight of Discovery and the 30th station assembly flight.

Hat Tip to absolutespacegrl on Twitter!

Nancy Atkinson

Nancy Atkinson

Nancy Atkinson is a space journalist and author with a passion for telling the stories of people involved in space exploration and astronomy. She is currently retired from daily writing, but worked at Universe Today for 20 years as a writer and editor. She also contributed articles to The Planetary Society, Ad Astra (National Space Society), New Scientist and many other online outlets.

Her 2019 book, "Eight Years to the Moon: The History of the Apollo Missions,” shares the untold stories of engineers and scientists who worked behind the scenes to make the Apollo program so successful, despite the daunting odds against it. Her first book “Incredible Stories From Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos” (2016) tells the stories of 37 scientists and engineers that work on several current NASA robotic missions to explore the solar system and beyond.

Nancy is also a NASA/JPL Solar System Ambassador, and through this program, she has the opportunity to share her passion of space and astronomy with children and adults through presentations and programs. Nancy's personal website is nancyatkinson.com