This year may finally fulfill the promise of private human spaceflight

Enlarge / Is this the year paying customers fly into space on VSS Unity and White Knight Two? (credit: GENE BLEVINS/AFP/Getty Images)

This year could see the fulfillment of a number of long-promised achievements in human spaceflight. For the first time, private companies could launch humans into orbit in 2020, and two different companies could send paying tourists on suborbital missions. The aerospace community has been watching and waiting for these milestones for years, but 2020 is probably the year for both.

We may also see a number of new rocket debuts this year, both big and small. A record number of missions-four-are also due to launch to Mars from four different space agencies. That's just the beginning of what promises to be an exciting year; here's a look at what we're most eagerly anticipating in the coming 11.5 months.

Commercial crew

Yes, it's happening. Probably. Both SpaceX and Boeing have made considerable progress toward launching humans to the International Space Station from Florida. They've also had setbacks. SpaceX's Crew Dragon performed a successful test back in March, but a month later the capsule exploded during a thruster test. Boeing completed an orbital uncrewed test flight in December, but it was hampered by a software issue and unable to perform the primary task of its flight, approaching and docking with the International Space Station.

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