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An ultraviolet mosaic from NASA’s Galaxy Evolution Explorer shows a speeding star that is leaving an enormous, 13-light-year-long trail. The star, named Mira (pronounced my-rah), appears as a small white dot in the bulb-shaped structure at right, and is moving from left to right in this view.
GALEX: Managing the Unexpected

By James Fanson   They say that good things come in small packages, and this has certainly been true for NASA’s Explorer Program. Explorers are among the lowest-cost missions flown by NASA, but they can pack a big scientific punch.

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