Mike Massimino, the former astronaut who became the first man to tweet from space during one of his two space flights, says companies like SpaceX, Virgin Galactic, and Blue Origin are close to sending paying customers to space. These companies are "the best hope we have for a thriving space program," he tells Cheddar in an interview Thursday. For the full interview, [click here](https://cheddar.com/videos/spacing-out-with-mike-massimino).

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Astronaut Scott Kelly: In Space, You Can't See Political Divides
Astronaut Scott Kelly saw the sun rise and set about 32 times each day during the 520 total days he spent in outer space. He also spent considerable time looking at Planet Earth. Naturally, it changed his perspective ー in the most literal sense. Kelly shares that new perspective through images in his latest book, "Infinite Wonder: An Astronaut's Photographs from a Year in Space."
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