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Cosmic Double Take: Rare Binary Asteroid Discovered Near Earth
Space.com ^ | July 12, 2018 03:52pm ET | Meghan Bartels,

Posted on 07/12/2018 7:32:34 PM PDT by BenLurkin

The bouncing-baby asteroids were revealed by three radar telescopes, which shoot a beam of radio waves at nearby asteroids and wait for the reflection to return to Earth. Astronomers can use those received signals to paint a picture of the shape of an asteroid. In this case, that meant discovering that what looked like two lobes of one rock are actually two separate rocks, circling each other every 20 to 24 hours.

It's a particularly exciting surprise because the two pieces of 2017 YE5 are almost the same size, each about 3,000 feet (900 meters) across. So far, scientists have spotted only three other such well-matched pairs. Most binary asteroids are uneven, with one half dwarfing the other.

The new observations of 2017 YE5 showed another eye-catching result: The pair aren't identical twins. One half of the binary looks to be much darker than the other, suggesting that they're made of different things, or perhaps have extremely different textures.

(Excerpt) Read more at space.com ...


TOPICS: Astronomy; Science
KEYWORDS: 2017ye5; astronomy; catastrophism; science
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To: Equine1952

20 posts before the Uranus reference.

FReepers are slipping


21 posted on 07/12/2018 8:56:20 PM PDT by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: BenLurkin

Spin them in place, around the long axis between the two,
so if they ever were to separate, they would come together,
from the gravity between them, rather than fly apart, so close to Earth.
Also less strain on the trussing between the two.

They are each quite big enough to simulate gravity (upside down) under the surface while spun, but you might need to “bag” them to keep them from spinning material off into space or spinning to pieces.

Ships can land upside down on the “roof” in surface hangers,
or there can be a tunnel all the way through the long axis. Or both.


22 posted on 07/12/2018 9:08:19 PM PDT by EasySt (Truth will Prevail)
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To: BenLurkin

Are they sure it’s not the superimposition of the Trump Baby, eclipsing all other bodies in the upper stratosphere?


23 posted on 07/12/2018 9:17:34 PM PDT by confederatecarpetbag
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To: BenLurkin

Let me guess?

They’re from the Dewey Decimal System, beyond the Galaxy 500XL.


24 posted on 07/12/2018 9:20:20 PM PDT by EnglishOnly (Fight all out to win OR get out now. .)
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To: BenLurkin

How long can this pair last? Woildnt they eventually fall into each other?


25 posted on 07/12/2018 9:59:33 PM PDT by Getready (Wisdom is more valuable than gold and diamonds, and harder to find.)
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To: Getready

As long as we want it to?

I hear we’re getting a space force.


26 posted on 07/12/2018 10:09:27 PM PDT by EasySt (Truth will Prevail)
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To: EasySt

Space farce?


27 posted on 07/12/2018 10:54:10 PM PDT by Equine1952 (Get yourself a ticket on a common mans train of thought.)
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To: BenLurkin

And here's the happy couple now...


       
       


(Okay, at least it's not another scientific treatise on "Uranus"...)      :-)

28 posted on 07/12/2018 11:27:19 PM PDT by Songcraft
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To: arrogantsob

https://en.wikipedia.org/wiki/2017_YE5


29 posted on 07/13/2018 2:26:26 AM PDT by Lonesome in Massachussets (Psephomancers for Hillary!)
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To: Getready
Woildnt they eventually fall into each other?

Why, then does no the earth fall into the sun, or the moon onto the earth. Actually, the moon is going the other way, receding away from earth due to tidal breaking. (It's complicated.)

Any two bodies in orbit are perfectly stable in the absence of external forces. They have so little gravity that it would not take much to disrupt them, and cause them to go along on separate orbits. A close pass near a planet could do it. The only two planets whose orbit they cross are the gravitational pipsqueaks Earth and Mars. The orbit is tilted by 6.21 degrees from earth's orbit, so it is unlikely they will ever come close enough to earth to seriously interact.

30 posted on 07/13/2018 2:38:01 AM PDT by Lonesome in Massachussets (Psephomancers for Hillary!)
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To: arrogantsob

16 lunar distances ~ 16 x 240,000 miles = 16 x (1,000,000/4 -10,000) = 4,000,000 - 160,000 ~ 3,840,000 miles. A long ways off.


31 posted on 07/13/2018 2:55:25 AM PDT by Lonesome in Massachussets (Psephomancers for Hillary!)
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To: Lonesome in Massachussets

I know, I was just being a wise-ass.


32 posted on 07/13/2018 10:48:03 AM PDT by arrogantsob (See "Chaos and Mayhem" at Amazon.com)
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To: fieldmarshaldj; 75thOVI; Abathar; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; ...
Thanks fieldmarshaldj.

33 posted on 07/13/2018 2:54:54 PM PDT by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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To: BenLurkin

Those aren’t asteroids! It’s a trap! It’s the assault ship and his wingman!


34 posted on 07/14/2018 6:46:27 AM PDT by Cvengr ( Adversity in life & death is inevitable; Stress is optional through faith in Christ.)
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