Young Observer: Black Holes Young Observer Young Observer
Young Observer: Black Holes
Young Observer: Black Holes Young Observer Young Observer
Young Observer: Black Holes
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How many Earths will fit into the Sun? Which planet may not really be a planet? How do astronauts go to the bathroom? Who spies from space? How fast can a comet travel? In a book packed with informative facts and quizzes, the inquisitive young mind will be challenged to discover the fantastic secrets of outer space.