This printable crossword puzzle on the topic of Astronomy & Space has 10 clues. Answers range from 6 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The closest --- to us is the Orion ---.
Will shrink until reaches 10 million Kelvin
Makes up about 90% of stars in the universe.
As it grows, it may engulf inner planets.
These are the largest stars in the universe.
Gravity here is about 350,000 times stronger than gravity on earth.
The explosion of a super giant.
Currently 0 of these are estimated to exist.
Basically a very large nucleus.
Can slightly slow down time.