What country helped Apollo 13?

Why speed to exit atmosphere? Who was The first earth creature to go into space? Thhere will be people living on the moon by the year 2020? What is the period of a binary star? What planet does the moon orbit? What holds the most heat in the atmosphere? What direction does the Sun appear to move across the sky each day? How did amy and dan get to the top of mteverest? What is an eyepiece x10? I am a nymph beloved of Zeus and hated by Hera. Hera changed her into a bear and Zeus then placed her in the sky as the constellation Ursa Major. What moon am I? Do cirrus clouds cause rain and why? What is the relationship between an asteroid's orbital period and its distance from the sun, as described by Kepler's third law? What is bauxite's specific gravity? Hourly time signals from which observatory were first broadcast on 5 february 1924? What is the Roman name and Greek name of the moon? How far do bullets travel on mars? Can the moon float on water? When do the phases of venus occur? Who was The first black astronaut? How soon would spotting occur after conception?