Mars landing this Wednesday: On Wednesday, Oct. 19th, a European Space Agency (ESA) probe named “Schiaparelli” will parachute to the surface of Mars after a plunge through the atmosphere. Schiaparelli hitched a ride to Mars onboard the Trace Gas Orbiter, launched from Earth last March. The Trace Gas Orbiter is a satellite that will spend the next few years scanning the Red Planet for chemical signs of life–especially biogenic methane. You can follow the action on the ESA’s live webcast. What do you think they’ll find?