Riddles of the Universe
by Bonallack, John
Prefer borrowing? Open Library may have a digital copy too.
AR Book Level
6.2
AR Points
0.5
Word Count
2,542
Interest Level
Middle Grades (MG 4-8)
Genre
Nonfiction
AR Quiz #
306555 EN
About this book
On 23 July 1999, Commander Eileen Collins took the space shuttle 'Columbia' into orbit, to launch the Chandra X-Ray Observatory, which will help scientists to find answers to some of the riddles of the universe, such as what are black holes?