All Questions
8 questions
0
votes
2
answers
66
views
Does going to the other side of Milky Way galaxy mean seeing different observable universe?
What if there was a robot that got sent to the other side of the Milky Way by just traveling with a fusion engine and started orbiting a planet that has around Earth's gravity in order to avoid any ...
- 1,554
0
votes
1
answer
84
views
Size and boundary of the Milky Way Galactic disk
I have been pondering a question that arose while I was reading a research paper that mentions galactic disk stars have been found up to distances as far as 25 kpc from the galactic center and ...
0
votes
0
answers
24
views
How much gravitational lensing do we see from the Milky Way?
I assume that the Milky Way has a dark matter halo just like any other. If that is the case, if we look at a huge part of our own galaxy, do we actually see the gravitational lensing effect? How ...
- 751
2
votes
6
answers
208
views
Are we totally limited to the Milky Way for all stellar astrophysics?
Simply put;
Are we able to make any observations of the individual stars in other galaxies?
Is the depth of our scientific knowledge on star systems, based solely on stars in the Milky Way Galaxy ...
- 961
8
votes
6
answers
2k
views
Is there cosmological redshift within the Milky Way?
Cosmological redshift is based on the idea that the universe is expanding. When the universe doubles in size, or scale factor, the wavelength of light doubles. But the Milky Way is not expanding so my ...
- 369
3
votes
2
answers
879
views
How will Andromeda collide with Milky Way in spite of Hubble's law? [duplicate]
According to Edwin Hubble our Universe is expanding because he noticed that other galaxies are moving away from us. But then how Andromeda galaxy will collide with Milky Way in ~4.5 billion years, as ...
- 69
2
votes
1
answer
284
views
Milky Way Density
It seems to be a simple question, but I wasn't really able to find an appropriate answer: How dense is the Milky Way? I am certain that there are reliable statistic, maybe even new ones from the GAIA ...
- 958
5
votes
1
answer
256
views
Why is there a line in the middle of the Planck full sky map?
Why there is a straight line (or perhaps a flat surface) in the middle of the Planck full sky map?
(source: esa.int)
and zoom
(source: handshakemag.com)
(it makes it seem that the big bang was a ...
- 51