Saturday, October 21, 2017

EarthSky News - Oct 20 - Orionid Meteors, Top Stories

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Tonight … Keep watching for Orionid meteors
Meteor showers last for several weeks, as Earth passes through a stream of debris left behind by a comet. The Orionids might have peaked Saturday morning, but Sunday morning should be good, too.
The UK had a red sun Monday
Weather forecasters said it was caused by dust from the Sahara, raised via Hurricane Ophelia.
More evidence for a Planet 9
By the way, if Planet 9 does exist … it's definitely not headed our way.
Whales and dolphins live 'human-like' lives
They work together, talk to each other and use tools.
What are gravitational waves?
If you understand how a trampoline works, you can understand gravitational waves.
Creatures raft across Pacific, thanks to tsunami
Hundreds of species hitched rides on debris from the 2011 Japanese tsunami.
Traveling to Mars? Top 6 health challenges
People making the long space journey will experience health risks they've never faced.
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2018 lunar calendars are FINALLY here!

Get your calendars 25% OFF this week.
Keep watching for Orionid meteors
Aurora, with Orionid meteor falling above it, by Tommy Eliassen Photography in Norway.
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See it! Elusive Uranus at opposition
Uranus - most distant planet visible, barely, to the unaided eye - was opposite the sun this week. Here's Uranus on October 20 by Greg Redfern in Virginia. He wrote, "Uranus was visible to my unaided eye but much more colorful in the picture. It took 157 minutes for the light from Uranus to reach my eyes and camera." More photos here.
Submit your photo to EarthSky here!
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