Pioneer 10 holds the titles for many “firsts”: It was NASA’s first mission to the outer planets, the first spacecraft to fly beyond Mars, the first to traverse the asteroid belt, and the first to fly past Jupiter. It was also the first spacecraft placed on a trajectory to escape the solar system into interstellarContinue reading "June 13, 1983: Pioneer 10 leaves solar system"

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Looking for a sky event this week? Check out our full Sky This Week column.  June 12: The Moon meets Mars Turn your telescope toward southern Pisces this morning, where Saturn outshines any of the stars in this part of the sky. This is where Comet 220P/McNaught recently underwent an outburst, quickly brightening from 18th magnitude toContinue reading "The Sky Today on Saturday, June 13: Catch Comet 220P/McNaught"

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