Researchers have been asking this question for more than 70 years, over a decade before people even made it to space. This ...
The North American X-15 was built to flirt with the edge of space, not to cross it by accident. Yet on a research mission labeled Flight 90, a routine test profile slipped just far enough out of ...
The monumental achievement of sending the first human in space is a cornerstone of the history of space travel. On April 12, 1961, a single man's journey beyond Earth's atmosphere captivated the world ...
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