OUR UNIVERSE

123456
Across
  1. 3. Planet which is known as Red Planet
  2. 4. dwarf planet
  3. 5. comet which is seen after 76 years.
  4. 6. The group of stars resembling a large saucepan with a handle.
Down
  1. 1. Twin planet of Earth
  2. 2. First Indian artificial satellite
  3. 3. Planet that is very hot during the day and very cold during night.