POSTIES 0527 COVER

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Across
  1. 1. a scientist who studies the possibility of life beyond Earth
  2. 5. someone who travels into space
  3. 6. To be an astronomer, you need to be really good at maths and _____.
Down
  1. 2. a vehicle that travels in space
  2. 3. the round object that shines in the sky at night and moves around the Earth
  3. 4. Black holes are places in space where the pull of gravity is so strong that _____ cannot escape.