
Credit: Space Telescope Science Institute NASA
More than halfway through its 10-year, 3-billion-mile journey to Pluto, NASA's New Horizons spacecraft is being roused from hibernation this week to relay some tracking information back to Earth, a rather slow and deliberate process considering that the probe is so far away round-trip communications take five hours.
Lead scientist Alan Stern marked the occasion of New Horizon's halfway point by paying a visit to the family of the late Clyde Tombaugh, the astronomer who in 1930 discovered Pluto.
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