NASA took a big step toward bringing people to Mars this week, although it will still likely be at least another 20 years before we can actually make such a journey. NASA launched its Orion spacecraft on Friday, an event that the organization describes as “the first flight test for NASA’s new deep space capsule and is a critical step on NASA’s journey to Mars.” Orion is set to be airborne for about four-and-a-half hours on Friday before it lands back in the Pacific Ocean.
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