EarthSky News - Oct 6 - Close Asteroid

October 6 Close Asteroid by:

Asteroid to sweep close October 11-12 It'll pass farther than some thought at first, but still within the moon's orbit. How to watch online. Plus, how this space rock will be used it as a test of Earth's global asteroid defense system. Today in science: 1st planet orbiting a sunlike star Among astronomers, the excitement was intense for this historic announcement on October 6, 1995. Help identify Earth features in astronaut photos Hey citizen scientists!  You're invited to test a new tool to study Earth using photos taken by astronauts aboard the International Space Station. Here's how. Friday FAQ … Why leaves change color in the fall  Do the bright colors of autumn leaves have a hidden purpose? Don’t miss the photos in this post!

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Look for the daytime moon Look west after sunrise for the moon, floating against the blue sky. Photo by Brian Pate. Used with permission.

Harvest Moon mirage When you look over an ocean at a distorted sun or moon, the reason is most often that the low slanting rays of the object are being highly refracted between air layers of different temperatures. Photo taken on Thursday morning by Gene Aubin in Newport, Oregon.  Submit your photo to EarthSky here!

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EarthSky News - Oct 5 - Tabby's Star, Harvest Moon, Spacewalk

October 5 Tabby's Star Harvest Moon Spacewalk by:

Is dust what's dimming Tabby's Star? Astronomers say they've found a smoking gun that rules out the idea of an energy-harvesting megastructure or Dyson sphere - built by an alien civilization - surrounding Tabby's Star. Tonight … The Harvest Moon The Northern Hemisphere's Harvest Moon is the full moon closest to the September equinox. Watch for it. This morning ... Watch a spacewalk Three ISS astronauts will start their spacewalk at about 8:05 a.m.EDT (12:05 UTC) today; translate to your timezone. Large storm on sun sparked global aurora on Mars Scientists said the solar event "lit up Mars like a light bulb." It was the biggest event of its kind so far observed by spacecraft in Mars orbit and on the surface.

EarthSky t-shirt's are back EarthSky is happy to announce our latest initiative EarthSky Cares. A percentage of proceeds collected through this sale will be donated to select organizations. Click here to help us make a difference in our world today!

Watch for Mars and Venus this week Don Gargano in Rye, New Hampshire caught very bright Venus and much fainter Mars on Wednesday morning.

Anticrepuscular rays at Georgia moonrise Scott Kuhn captured anticrepuscular rays as the moon was rising over Fort Mountain in northern Georgia. "I know we are spoiled around here," he said, "but tonight sure was pretty."  Submit your photo to EarthSky here!

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