Science with the Swede Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 15 clues. Answers range from 3 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

how many moons Mars has
Largest star found so far look around the room)
how far something moves over time
Size+Magnitude
2nd largest star found so far (2 words written as one) That's one big dog!
Albert is famous for this
the size of a number
Metal at room temp, dangerous gas
strength of pushing/pulling
5th planet from the sun
Triton is one its many moons
The bang that started the current Cosmos
Father of the atomic bomb
Killer-ray
Visible Spectrum with shortest wavelength