Lure of the Unknown
December 2, 2012
In one of my children's science books was a table of planetary data that I enjoyed perusing; but in the space for Pluto's rotation period it said "unknown". The intrigue of that single word spurred a lifelong interest in astronomy, with a strong planetary emphasis. Happily -- over 40 years later -- I now have that info: about 6 days 9 hrs. And soon I'll get to see the icy worldlet close up, when New Horizons arrives there.
They are Watching the Skies for You!
Our researchers, worldwide, do absolutely critical work.
Asteroid 2012DA14 was a close one.
It missed us. But there are more out there.