Spacecraft set to capture comet dust
The Stardust spacecraft is expected to fly within 186 miles of comet Wild 2 on Friday, collecting samples and taking photographs 242 million miles from Earth.
During the flyby, Stardust should capture roughly 1,000 particles of dust ripped from Wild 2 (pronounced vilt-two) by streams of gases boiled from the comet’s surface by the warming rays of the sun.