We are in a galaxy with a lot of stars. It is estimated to contain 100–400 billion stars, The nearest galaxy to ours is Andromeda, but the stars within our galaxy, the Milky Way, are from about 4 light years away to about 100,000 light years away. We can see the Milky Way with the naked eye, and it looks, to the naked eye, like a light smear of milk across the night sky. You can’t see the individual stars that are far away, even within our own galaxy. In the Milky Way galaxy there are, as I said, many stars, but in our night sky we can only see about 9,096 individual stars.
- Have astronauts really been to outer space or are they simply faking it?
- How do I communicate with extraterrestrial life from another solar system with laser beams to send them a message?
- Why did the Russians use their probe immediately on Venus, but NASA waits days to use ingenuity on Mars?
- Are we alone? Are there humans out there besides us?
- Is space junk a serious problem?