On the Moon they would weigh only 200 N. The astronaut's mass is 120kg wherever they are. The weight of an object changes if the strength of gravity changes. Remember: a mass of 1 kg has a weight of about 10 N on Earth.
The droplets in the air may be breathed in by those nearby. Spread can also occur by touching the nose or mouth with droplet contaminated hands. Examples of droplet spread diseases: 1  common cold. 2  flu. 3  meningococcal disease. 4  rubella.
Smallpox spreads from person to person mainly by aerosolized droplets that come from the coughing of infected patients. Contact with smallpox scabs or contaminated clothing or linens can also spread the disease. Animals or insects are not known to act as reservoirs or transmit the disease.