As more objects were found, astronomers began questioning whether Pluto should be considered a planet. Astronomy ran the photo in December 1992. The first Kuiper Belt object found beyond Pluto, 1992 QB1 (indicated with an arrow) appears as a tiny speck in this discovery image. Pluto was the most distant object known, though a Kuiper Belt of icy objects was thought to lie beyond it. It had nine planets and we had not yet seen the worlds beyond the main belt up close. When Astronomy began publishing in 1973, the solar system as we knew it was a very different place. But, for this special anniversary issue, let’s highlight a few key journeys we’ve made, as seen through the lens of science stories that have appeared in Astronomy magazine. In its 50-year tenure, this magazine has seen breathtaking change - far too much progress to mention it all.
There is only one generation in the whole history of mankind in that position. Carl Sagan wrote in the June 1974 issue of Astronomy: “Clearly the best time to be alive is when you start out wondering and end up knowing.
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