Questions tagged [galactic]

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4
votes
1answer
196 views

What will happen to a spacecraft if it cancels its galactic velocity?

A spacecraft in a circular LEO orbits at ~7.7km/s. If it performs a retrograde burn and cancels this velocity (within the Earth reference frame) it will start falling towards the Earth center along a ...
4
votes
0answers
101 views

Solar system galactic velocity vector relative to ecliptic plane

The Solar system moves through the Milky Way galaxy with velocity of 230 km/s. The ecliptic plane is located ~60 degrees with relation to the galaxy plane, according to this source. The page also ...
-2
votes
1answer
94 views

What are the percentages of matter in the universe, and how did we find out? [closed]

What are the percentages of matter in the universe? And how did we find out about it?
32
votes
5answers
6k views

How does Santa travel to other galaxies? [closed]

NORAD has concluded from their observations of Santa that he must have some faster-than-light travel mechanism and space-time warping capabilities. However, the Santa Goes to Space event at the ...
7
votes
2answers
373 views

How did scientists put forth or create the images of milky way galaxy

I understand telescopes were used to observe and capture images of other galaxies. But, by risking the question sounding pretty ordinary, may I know how did we take the pictures or photographs of our ...
6
votes
1answer
532 views

Does the Milky Way have a Lagrangian point? [closed]

About 2.5 million light years from the Milky Way is the Andromeda Galaxy. We have about 4 billion years before the two collide as they approach each other things are getting to get interesting. But ...