Alien-Hunting Telescope Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 10 clues. Answers range from 3 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

An optical instrument designed to make distant objects appear nearer.
the chemical element of atomic number 13, a light silvery-gray metal.
An electromagnetic wave of a frequency used for long-distance communication. (Two Words)
The action of messing with the connection of a object
a celestial object, thought to be a rapidly rotating neutron star, that emits regular pulses of radio waves and other electromagnetic radiation at rates of up to one thousand pulses per second.
A space telescope that was launched into low Earth orbit in 1990 and remains in operation.
landscape underlain by limestone that has been eroded by dissolution.
This Space Telescope is a part of NASA's ongoing Flagship program.
A Spanish archipelago off the coast of northwestern Africa. (TWO WORDS)
An impressive display or range of a particular type of thing.