Because of a lack of Keynesian ideas, the President's Science Advisory Committee does not recommend in 1958 the establishment of NASA as in OTL.
In 1961, Yuri Gagarin demonstrates that manned spaceflight is possible.
Through the 1960's a number of companies and organizations with the goal of space travel are founded and grow. President Proxmire does not involve the United States government in the nascent space industry.
John Glenn returns from space to found a company to provide space tourism to the super-rich (of whom there are more as a result of the Kennedy tax cuts)
Neil Armstrong is the first man on the moon, flying with a private space company. The American imagination is caught up in space travel.
The market for space tourism creates economic incentives to improve space-travel technology and efficiency. Throughout the 1970's, moon landings become commonplace, and commercial space-flights become cheaper. A human base is established on the moon with constant human habitation. A mining operation is established on the moon with the goal of selling moon-rocks on Earth. Water is found on the moon, surprising scientists.
By 1980, the first human lands on Mars. A string of Mars landings follow. A scientific base is established 50 km up in the atmosphere of Venus, suspended by Oxygen/Nitrogen balloons. The first human baby is born on the moon.
In an interview, Former President Proxmire states how surprised and amazed he is at the how far space exploration had come since his presidency.
A community is founded on Mars, centered around a natural resource extraction operation. In the mid-1990's, a couple give birth to the first human baby born on another planet.
Space explorers are being sent beyond Earth, Mars, and Venus, exploring Mercury, Ceres, the Asteroid Belt, and the Outer Solar System.