I went over to Spaceweather.com to see if an aurora is likely in the next few days. Apparently not, but I found a good article on the Earth-grazing asteroid Hermes, discovered and lost in 1937 and rediscovered this year. The write-up explains why it was so easy to lose track of, and says we're safe for the next century or so. Beyond that, Hermes' orbit is unpredictable, because it interacts with too many planets: in 1954, Earth and Venus both perturbed it.
They also have maps of sunspots on the far side of the sun, helioseismography from the SOHO satellite. I'd read about the technique three years ago, then forgotten all about it.
I like living in a culture that not only has satellites like that, but puts all this cool information out there for me to look at any time it occurs to me. With John Coltrane's version of "My Favorite Things" playing behind me, courtesy of Vin Scelsa and WFUV-FM.
They also have maps of sunspots on the far side of the sun, helioseismography from the SOHO satellite. I'd read about the technique three years ago, then forgotten all about it.
I like living in a culture that not only has satellites like that, but puts all this cool information out there for me to look at any time it occurs to me. With John Coltrane's version of "My Favorite Things" playing behind me, courtesy of Vin Scelsa and WFUV-FM.
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