Thursday, May 18, 2017

EarthSky News - May 18 - Think in 3D with the Last Quarter Moon

May 18
Think in 3D with the Last Quarter Moon
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Think in 3D with the last quarter moon  
Watch for the last quarter moon tonight after midnight - or around dawn Friday - and use it to imagine Earth's motion through space.
Tonight … Find the Keystone in Hercules
The Keystone is an easy-to-find pattern of 4 stars in constellation Hercules. Bright star Vega acts as your guide to finding it.
Alligator's bellow communicates size
For an alligator, in both love and war, it's good to be big. An alligator's bellow communicates just how big it is.
Pufferfish, humans share same genes for teeth
Our human teeth evolved from the same genes that make the bizarre beaked teeth of the pufferfish, according to new research.

EarthSky Lunar Calendars are on sale 50% OFF

A unique and beautiful poster-sized calendar. Keep up with all phases of the moon every night of the year. Only about 100 left in stock, get them while you can!

Find the Keystone in Hercules
You need a dark sky to see this squarish asterism.
There's always one out there
Sometimes, in night photography, a little light turns out to be a good thing. Selfie and aurora over New Zealand caught in late April by Bruce MacKay of The Darker Arts.
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