What is photroprism?

Who was forced to admit publicly that the earth stood motionless at the center of the universe.? Why do astronauts wear silly suits? What is the giant ring around the moon called? Can anything explode in space? What is total number of constellation? What makes up 21 percent of the air? Why did gherman titov go up to space? What is the diameter of oberon? What planet is blue and green and a little brown and a small planet? Is the moon always out during the day? When did the moon split? What year was the compass rose invented? What constellation is named after a mythical creature? What produces the retrograde motion of Mars? What comes after Millennium? How hot is the sun in Australia? What is the name of the song that goes baaaaaaaam baaaaaaam baaaaaaaaam BAM BAM you think its assosiatited with Apollo 11 landing? How long did it take to build the space shuttle challenger? How old was Buzz Aldrin when he went to the moon with neil Armstrong? What is the dhatu roop of kridh?