the.com/mars atmosphere
a sunburned ghost of an atmosphere, 100 times thinner than a decent excuse.
means the thin, mostly carbon-dioxide shell around mars, too weak to hold heat or stop radiation, and too weak to hold liquid water on the surface.
from mars once had a thick, warm atmosphere and possibly rivers and lakes, but without a global magnetic field to shield it, solar wind slowly stripped the gas into space over billions of years, leaving the thin remnant we see now.
pressure todayless than 1 percent of earth's
composition95 percent carbon dioxide, barely any oxygen
cause of lossno magnetic field, solar wind erosion
weather trickdust storms can swallow the entire planet
for instance
maven mission — nasa orbiter since 2014 measuring atmospheric escape rates
olympus mons clouds — water-ice clouds form around the solar system's tallest volcano