The phrase "astronaut outside" is correct and usable in written English.
It can be used in contexts discussing space exploration, outdoor activities related to astronauts, or scenarios involving astronauts in an external environment.
Example: "The astronaut outside the spacecraft was conducting a spacewalk to repair the satellite."
Alternatives: "spacewalker outside" or "astronaut in the open".
NASA estimates that each seven-person space shuttle mission now costs about $65 million per astronaut, and outside experts say the true cost, once you add in all shuttle-related expenses, is double or triple that figure.
The two men also remained motionless for 15 minutes so ground controllers could study why the station tends to tilt as astronauts are outside spacewalking.
Thanks to long-duration spacewalks--like when astronauts ventured outside to fix the Hubble Space Telescope--bruising, blisters and even bent-back fingernails (ouch) aren't uncommon.
Meanwhile, opportunities for astronauts outside of NASA are small but growing.
Once the laboratory is hooked to the space station, the astronauts outside the station will attach power and data cables.
Her "BioSuit" functions as a second skin, but unlike the Virgin concepts, this would be a fully fledged suit capable of protecting astronauts outside their ship.
For more than six hours, Wiseman and Esa astronaut Alexander Gerst worked outside the Quest airlock of the International Space Station to relocate a failed cooling pump and instal gear that provides backup power to robotics equipment.
Mr. Bass, 23, has been training since July at the Star City astronaut center outside Moscow for a Soyuz rocket trip to the International Space Station in October.
During the spacewalks, the robot arm on the shuttle will be used to position the outside astronauts for the operation and to provide television views of the proceedings to aid the station crew.
Astronauts on this outside shift also will begin installing the experimental cryocooler refrigeration system, which is designed to cool down detectors in the Near Infrared Camera and Multi-Object Spectrometer, an important instrument added to Hubble in 1997 that has been dormant since 1999.
