https://www.cnet.com/news/nasa-insight-wows-with-mars-landing-but-work-just-getting-started/

"The InSight team can rest a little easier ... now that we know the spacecraft solar arrays are deployed and recharging the batteries," Tom Hoffman, InSight's project manager at NASA's Jet Propulsion Laboratory, said in a statement.  

But flipping the switch is just the beginning.