To Mercury By Way Of Slinky Crescent

Catch any northern lights last night? It wasn’t easy. A low glow and a few faint rays appeared in the northern sky early just after the end of evening twilight. I also saw some glow early this morning just before the start of dawn. Forecasts still call for a G1 or minor geomagnetic storm (Kp=5)…
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How Moon Colonists Might Survive The Frigid Lunar Night

Man, it can get cold on the moon. With virtually no air to speak of and a night that lasts just shy of two weeks, the surface temperature drops to around 275° below zero (–170° C). Dry ice or frozen carbon dioxide is toasty in comparison with a temperature of just –109° F (–78.5° C). Picture…
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Lunar Triangle / Departing Venus Runs Into Mercury

After a busy weekend watching moonrises and lunar halos a guy needs a break. Today we catch our breath, astronomically speaking, so we can prepare for an exciting moon-star-planet conjunction and the return of Mercury on Tuesday. We’re now on UUT, universally unwanted time, better known as daylight saving time.  Studies have shown that DST…
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Get A Load Of Saturn’s Moon Pan — Weird!

I like my eggs over easy but would never have guessed I could order up a moon that way. I mean look at it. Nature offers up possibilities no human could ever dream of. Pan is Saturn’s second-innermost moon and orbits inside the planet’s outer A-ring. Its gravity has cleared a lane in that ring called the…
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See Dazzling Aristarchus, The Moon’s ‘Searchlight’

As the moon waxes toward full this Sunday, the advancing line of lunar sunrise, called the terminator, reveals one of the moon’s brightest features, the crater Aristarchus (air-iss-TAR-kuss). This 25-mile-wide (40 km) hole was blasted out about 175 million years ago. That makes Aristarchus a relatively fresh crater compared to many we see through our…
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