Astronomy Chapter 21
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The Orion nebula is
a large cloud of gas and dust
Why is it so difficult for astronomers to see new stars in the process of birth?
all of the above
The closest star to the Sun, Proxima Centauri, was recently found to have a planet in its habitable zone. Proxima Centauri is a cooler red main sequence star with spectral type M. How would its habitable zone differ from the habitable zone of our Sun?
closer because it is smaller and cooler
Planets in the habitable zone of their stars:
have temperatures where water can exist as a liquid
If you want to find stars that are just being born, where are the best places to search?
in giant molecular clouds
