Oct 31 - Happy Halloween!

October 31 Happy Halloween! by:

The Gorgon Medusa had snakes in place of hair. Eek! Image via Wikimedia and Caravaggio.

Algol is the demon star What's the scariest star in all the heavens? Around Halloween, look for Algol - a star named for a demon! How to see it in your sky. Night vision specialists: Cats, bats, and owls Have you ever stumbled around a dark house, straining to see what's in front of you? Or maybe you've camped out in a dark forest, where nighttime navigation without a flashlight was impossible? Our human visual systems are not as well adapted to low light conditions as those of some other species including cats, bats, and owls. Here’s how they do it. Halloween ghost of the summer sun At mid-northern latitudes, the star Arcturus sets about 2 hours after sunset around Halloween. It sets at the same point on the horizon as the summer sun. It's a Halloween ghost of the summer sun and an echo of long summer afternoons. Read more. What we're reading From Forbes ... Our motion through space isn't a vortex Instead, It’s something far more interesting. Read more.

EarthSky lunar calendars are back in stock We're guaranteed to sell out, get one while you can! Your support means the world to us and allows us to keep going. Purchase here.

Tonight … Moon goes by Jupiter It'll be a great evening - with the lovely bright planet near the crescent moon - for halloweening. And be sure to keep watching the waxing moon. By this weekend, it'll be near Saturn. Read more.

Hubble brings you a spooky cosmic face This ghostly face, captured by the Hubble Space Telescope on June 19, is actually a collision of 2 galaxies of about equal size, 704 million light-years from Earth. Read more about the image.  Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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