Don't get worried or think about UFOs if you see something glowing in the sky.

Because NASA has finally managed to launch its mission to create ephemeral, glowing clouds for the first time.

The suborbital sounding rocket took flight at 4:25 a.m. ET Thursday from NASA's Wallops Flight Facility in Virginia and released its payload ? which consisted of 10 vapor-filled canisters ? shortly afterward.

It took NASA 11 launch attempts to get this mission off the ground, in part because of strict weather requirements.

Once at altitude, those canisters produced green-blue and red artificial clouds that should allow scientists to learn more about how particles move through space.

The artificial auroras were seen by skywatchers up and down the East Coast of the United States.

NASA in a statement said, "Wallops received nearly 2,000 reports and photos of the cloud sightings from areas as far north as New York, south to North Carolina, and inland throughout Virginia, Maryland, Pennsylvania, and points in-between."

In the video footage, the blinking auroras started off as a bright blue-green color and then fade to a deeper hue of blue in the sky.