NO. Now my brain hurts from thinking about this too much.
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· 10 years ago
To confuse you more, orbit is just earth falling towards the sun forever... The sun just moves so fast that we fall past it then we fall towards it again because of gravity
i don't think we will, i think the sun will die first.
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· 10 years ago
We wont collide with our sun, our sun will collide with us! This is because when the sun runs out of fuel it it not big enough to go supernova! It will just change into a massive red ball of gases, expand rapidly and engulf earth killing all of us. But thats only 4.4 billion years away :)
Yes, but there is one detail that isn't yet resolved. Astrophysicist aren't sure if the Sun actually will engulf the Earth.
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The expansion into a red giant will surely reach the present orbit of the Earth. BUT! Prior to the expansion, the Sun will undergo the stellar mass-loss phase. During this period the Sun will lose mass by throwing massive clouds of hydrogen into space like coronal mass ejections, only much larger. When it looses mass, the orbit of Earth will change and move outward. It is not yet known if distance will be enough to spare the Earth.
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But it's a moot point anyway. The stellar heating preceding stellar mass loss will render Earth uninhabitable anyway. (Still ~3 Billion years in the future though.)
No that's not how we move through space. Phil Plait can explain it better than I can though:
http://www.slate.com/blogs/bad_astronomy/2013/03/04/vortex_motion_viral_video_showing_sun_s_motion_through_galaxy_is_wrong.html
The original creator, while they are a creative and talented animator and artist, is woefully incorrect.
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If you ever see piece of astronomy news or information that has gone viral, especially if it seems to challenge popular convention, it's a good idea to see what Dr. Phil Plait has to say about the matter.
Technically, nothing. The sun and the rest of the galaxy orbits around the center of mass of the galaxy.
While there is evidence for a supermassive black hole in the center, we don't orbit it, it just happens to be at the center.
But some matter that is close to the center would orbit and eventually fall into the black hole (If that is what the mass at the center of the galaxy is). Right?
Yes, that is correct. That is infact how we detected/partially confirmed that it's there.
Using adaptive optics, Dr. Andrea Ghez and her team confirmed that there is a massive amount of mass at the center of the galaxy that is essentially invisible.
http://en.m.wikipedia.org/wiki/Andrea_M._Ghez
Check out any of the Nova specials about Supermassive Black Holes she's featured in. She's also done TED talks about it as well.
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The expansion into a red giant will surely reach the present orbit of the Earth. BUT! Prior to the expansion, the Sun will undergo the stellar mass-loss phase. During this period the Sun will lose mass by throwing massive clouds of hydrogen into space like coronal mass ejections, only much larger. When it looses mass, the orbit of Earth will change and move outward. It is not yet known if distance will be enough to spare the Earth.
.
But it's a moot point anyway. The stellar heating preceding stellar mass loss will render Earth uninhabitable anyway. (Still ~3 Billion years in the future though.)
http://www.slate.com/blogs/bad_astronomy/2013/03/04/vortex_motion_viral_video_showing_sun_s_motion_through_galaxy_is_wrong.html
The original creator, while they are a creative and talented animator and artist, is woefully incorrect.
.
If you ever see piece of astronomy news or information that has gone viral, especially if it seems to challenge popular convention, it's a good idea to see what Dr. Phil Plait has to say about the matter.
While there is evidence for a supermassive black hole in the center, we don't orbit it, it just happens to be at the center.
Using adaptive optics, Dr. Andrea Ghez and her team confirmed that there is a massive amount of mass at the center of the galaxy that is essentially invisible.
http://en.m.wikipedia.org/wiki/Andrea_M._Ghez
Check out any of the Nova specials about Supermassive Black Holes she's featured in. She's also done TED talks about it as well.