Saturday, September 30, 2017

EarthSky News - Sept 30 - Top Stories This Week

September 30
Top Stories This Week
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Giant iceberg on the move
There's a cool animation showing this iceberg's drift away from Antarctica's Larsen C ice shelf here.
Fast radio bursts firing every second?
New theoretical work indicates at least 1 fast radio burst, or FRB, going off somewhere each second.
How fast is our universe expanding?
New video about the controversial Hubble Constant - key to knowing the age of our universe and much more.

Is the Milky Way a normal galaxy?

Astronomers use knowledge of our Milky Way to understand the rest of the universe. But is the Milky Way typical?
Did dino-killing asteroid speed bird evolution?
Study suggests the asteroid that wiped out the dinosaurs increased the pace of evolution in their only remaining descendants - birds.
Passing spacecraft snaps Earth pics
The OSIRIS-REx spacecraft received a gravity boost from Earth on September 22, in the process creating this new Earth portrait.

Why don't poison frogs poison themselves?   

Scientists are a step closer to resolving this head-scratcher. 

Moon's near side is its dark side
Believe it or not, the moon's near side is its dark side, thanks to a collection of low-lying lunar plains, solidified remnants of ancient seas of molten magma.
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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!

Autumn arrives in Colorado
Hello autumn! Manish Mamtani captured this aerial view on September 24, 2017 - two days after the September equinox. Do you have a photo of autumn's arrival this year at your location? Or ... Southern Hemisphere spring? Submit your photo here.
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Near side of the moon
In terms of reflectivity, the moon's near side is its darker side, because of the dark low-lying plains, or maria, on this side. See if you can make out the dark areas on tonight's waxing gibbous moon.
Submit your photo to EarthSky here!
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