ARLA/CLUSTER: Boletim meteorológico de Marte.

[João Costa > CT1FBF]

Major space weather event on Mars

Last month, a human astronaut standing on the surface of Mars could
have seen something amazing. The night sky of the Red Planet turned
green in a global display of Northern Lights.

Unfortunately, the same astronaut would have been irradiated by high
energy particles from the sun.

For three days in mid-September a solar storm enveloped Mars, crossing
thresholds of ground-level radiation and auroras that orbiters and
rovers had never seen before.

Such global events on Mars may be more common than previously
thought--a topic explored on today's edition of  Spaceweather.com.