Round 1

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Across
  1. 2. HORIZON Boundary in spacetime beyond which events cannot affect an outside observer, point of no return. (In the movie 'Interstellar', Cooper and TARS slipped past this to find themselves in a tesseract resembling a stream of bookshelves.)
  2. 6. One of the oldest constellations to have been defined. In latin means dragon but ancient Greeks depicted it as a serpent.( A character from Harry Potter who is named after it and the Greeks probably predicted his house )
  3. 7. Any activity done by an astronaut or cosmonaut outside a spacecraft beyond the Earth's appreciable atmosphere.(The movie 'Gravity' features one emergency in space during this activity)
  4. 8. The worlds in this share a space and fate in common( a cosmic construct in the DC comics. )
  5. 9. A law that states that-"Anything that can go wrong, will go wrong". (A main character of the movie Interstellar was named after this .)
  6. 10. A habitable artificial satellite, in low Earth orbit. It is the largest artificial body in orbit and can often be seen with the naked eye from Earth.( Howard from 'the Big Bang Theory' was sent here by NASA as a payload specialist )
Down
  1. 1. The brightest star of the Orion constellation ( Means 'the female warrior' , also a main evil character of Harry Potter)
  2. 3. A constellation named after a mythological creature with the upper body of a human and lower body of a horse.(This creature has appeared in many movies like Narnia and Harry Potter)
  3. 4. Our ancestors thought these brought bad luck and were afraid of them. The name comes from the Greek word for 'hair'. ("Stars don't fall for men. But the ___ mean one thing boy, dragons" - A character named Osha in 'A Game of Thrones')
  4. 5. The highest energy, shortest wavelength form of electromagnetic radiation.(Hulk)