Yes, astronauts in space can see each other.
Astronauts on spacewalks, or even inside spacecraft with windows, can visually observe each other. The reference text even states that spacewalking astronauts have an exceptionally clear view, only slightly distorted by their helmet glass and the air within their helmets, because there's no atmospheric interference. This visual connection is crucial for communication, coordination, and safety during space missions. They communicate through hand signals and radio, but visual confirmation is always important.
Here's a more detailed breakdown:
- Clear Visibility: As there is no atmosphere in space to absorb or refract light, the visual clarity is exceptional, providing a clear line of sight between astronauts.
- Communication and Coordination: Visual contact is vital for teamwork during spacewalks and extravehicular activities (EVAs). Astronauts use hand signals and visual cues to communicate and coordinate tasks.
- Safety and Monitoring: Seeing each other allows astronauts to monitor each other's well-being and equipment. They can quickly identify and respond to any potential problems or hazards.
- Inside Spacecraft: Astronauts inside spacecraft with windows can also see each other and observe activities outside the spacecraft. This aids in situational awareness and mission monitoring.
Therefore, the answer is a definitive yes; astronauts can indeed see each other in space, and this visual connection is a critical part of space missions.
