When NASA finally launched its long-awaited sounding-rocket mission from Wallops Island, Virginia, early-bird viewers along the U.S. East Coast were treated to a spectacular show of glowing, multicolor clouds drifting through the sky.
Photographers woke up early to see the colorful display on several occasions, only to learn that the launch had been repeatedly delayed due to weather conditions. But when the mission finally blasted off on Thursday (June 29) at 4:25 a.m. EDT (0825 GMT), some persistent photographers finally had their chance to capture some incredible photos of the artificial clouds.
In Stone Harbor, New Jersey, photographer Chris Bakley had been waiting for weeks to shoot the colorful vapor clouds after NASA's sounding-rocket launch. "To be honest I wasn't expecting much from the launch but to see a whole sky full of glow-in-the-dark clouds," Bakley told Space.com in an email. "I was really impressed, to say the least."
About 5 minutes after the rocket lifted off from NASA's Wallops Flight Facility, it released barium, strontium and cupric oxide into the sky. When those chemicals interacted, they formed blue-green and red clouds that slowly faded to purple as they dissipated in the morning sky.
Harrison Jones was up "bright and early" to get some photos of the launch from Hanover, Pennsylvania, he told Space.com in an email. Jones managed to get some zoomed-in shots of the multicolored clouds from about 200 miles (320 kilometers) northwest of the launch site in Wallops Island.
And in Williamsburg, Virginia, photographer Chris Becke had an excellent view of the sounding rocket's colorful vapor clouds. "I had received some prior information on the launch angle and release height of the canisters as well as the range of possible drift. Using this information, I did some trigonometry calculations to predict the necessary field of view to capture the launch and subsequent vapor trails," Becke told Space.com in an email.
Becke went to "a reasonably dark site" called Little Creek Dam, located about 81.5 miles (131 km) from the launch site. There, he captured I captured 20-second exposures of the launch up until about 24 minutes after launch, "when the vapor trails had drifted out of the field of view," he said.
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Email Hanneke Weitering at firstname.lastname@example.org or follow her @hannekescience. Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com.