Posted on 12/02/2019 7:32:38 AM PST by BenLurkin
Such objects circle the planet rather than plunge through the atmosphere and into the groundat least for a time. It is believed most such objects do not circle the Earth for very longthey eventually succumb to gravity and crash through the atmosphere, or are instead flung back into space. As the researchers also note, to date only one such object has ever been recorded circling the Earthan object named 2006 RH120 was spotted back in 2006 circling the planetit did so for approximately 11 months before it escaped the Earth's gravity and made its way back into space. Also, only one minimoon fireball has ever been observeda team running a camera network in Europe spotted one back in 2014. In this new effort, the researchers report a second identification of a TCO blazing through the sky as a fireball prior to hitting the ground.
The researchers found evidence of the fireball by pouring through data from Australia's Desert Fireball Networka system of cameras (that also captures flight path) set up across the country for the specific purpose of capturing photographic evidence of a minimoon fireball. To find evidence of such a fireball, the researchers studied the photographs looking for evidence of any type of fireball, be it from a meteor or a TCO.
Once found, the team used the flight path data to calculate the trajectory of the blazing objectobjects circling the Earth before streaking through the atmosphere will have come in at a smaller angle.
(Excerpt) Read more at phys.org ...
I can't understand how an object — once having done this — can then (some time later) leave Earth orbit and go on about its merry way. Unless it has some sort of propulsion capability.
It took off when it noticed some F-18’s approaching.
Not sure about that either.
Maybe it realized it was an election year.
It’s mother called.
It left due to climate change.
I was wondering how it could be “blazing” in the vacuum of space.
I'm going to guess an interaction with the moon might do it.
It can happen because the atmosphere does not have homogenous density on the fringes. Plus it expands and contracts due to solar variance.
There is no solar variance, ask any pro-climate change scientist!
We see light from distant galaxies which are billions of light-years away...so the light has been traveling for billions of years. Why doesn't it get tired?
Those are some pretty "deep" questions you pose there, Verginius Rufus.
Regards,
Any picture available on this? Posting one would add to this.
Lots of pix at site...
phys.org
“I can’t understand how an object once having done this can then (some time later) leave Earth orbit and go on about its merry way.”
Perturbation from the moon probably. You have to remember that there are more than just 2 objects in the orbital system of the earth and the object that gets captured.
“does he explain why there is gravity to begin with?”
No, Newton had no explanation for it, he just found the equations to describe it (at least to some degree of accuracy).
Einstein did try to explain it, though I’m not certain that his explanation is anything more than a bit of sleight-of-hand. He basically said that gravitational attraction is kind of an illusion, that everything is still moving in a straight line when viewed in reference to “spacetime”, but the curvature of “spacetime” caused by the presence of mass makes it appear to us, observing in 3-dimensional space, like there is an acceleration between the two masses. As for why mass should deform “spacetime” (really just time, since the space component can’t be deformed), I don’t think Einstein really gave a good explanation for that.
“We see light from distant galaxies which are billions of light-years away...so the light has been traveling for billions of years. Why doesn’t it get tired?”
Well, that question is simple at least. Newton’s 1st Law of Motion: any object in motion will tend to stay in motion unless acted on by an outside force. Again, Einstein’s answer would be a bit different.
space objects that make their way close to Earth but do not immediately get pulled in by gravity are known as temporarily captured orbiters (TCOs), natural Earth satellites, or simply minimoons. Such objects circle the planet rather than plunge through the atmosphere and into the groundat least for a time. It is believed most such objects do not circle the Earth for very longthey eventually succumb to gravity and crash through the atmosphere, or are instead flung back into space.
As the researchers also note, to date only one such object has ever been recorded circling the Earthan object named 2006 RH120 was spotted back in 2006 circling the planetit did so for approximately 11 months before it escaped the Earth's gravity and made its way back into space.
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