Mars Feels Sun’s Wrath Discovery News

The sun battered the Earth’s magnetosphere with an “epic” geomagnetic storm over the last couple of days, generating beautiful auroral displays at low latitudes. Now it’s Mars’ turn.
On Saturday (Oct. 22), a large bubble of solar plasma was blasted from the sun’s surface. Unlike the coronal mass ejection (CME) that struck us on Monday, Saturday’s CME was sent in a different direction — toward the Red Planet.
As per simulations carried out by NASA’s Goddard Space Weather Laboratory (shown below), the CME should have arrived in Mars orbit by now (Oct. 26). However, its impact on Mars will be very different than a CME’s impact on Earth.