The dramatic arrival of the $993 million spacecraft - created to listen for quakes and tremors as a way to unveil the Red Planet's inner mysteries, how it formed billions of years ago and, by extension, how other rocky planets like Earth took shape - marked the eighth successful landing on Mars in NASA's history.
Minutes after touching down on Mars, NASA's InSight spacecraft sent back a "nice and dirty" snapshot of its new digs.
The photo revealed a mostly smooth and sandy terrain around the spacecraft with only one sizable rock visible.
Better photos are expected in the days ahead.
InSight is being followed to Mars by two mini-spacecraft comprising NASA's Mars Cube One (MarCO), the first deep-space mission for CubeSats, which attempt to relay data from InSight as it enters the planet's atmosphere and lands.
The spacecraft is NASA's first to touch down on Earth's neighboring planet since the Curiosity rover arrived in 2012.
NASA Administrator Jim Bridenstine, presiding over his first Mars landing as the space agency's boss, said: "What an incredible day for our country".
JPL director Michael Watkins said: "Every Mars landing is daunting but now, with InSight safely on the surface, we get to do a unique kind of science on Mars".More news: Snowstorm batters parts of Midwest, 100s of flights canceled
InSight, a $1 billion worldwide venture, reached the surface after going from 12,300 miles per hour (19,800 kph) to zero in six minutes flat, using a parachute and braking engines.
The 800-pound (360-kilogram) InSight is stationary and will operate from the same spot for the next two years, the duration of a Martian year.
"The InSight team can rest a little easier tonight now that we know the spacecraft solar arrays are deployed and recharging the batteries", said Tom Hoffman, InSight's project manager.
InSight was initially launched in May 2018 and successfully touched down on the surface of Mars last night. NASA TV coverage was also shown on the giant screen in New York's Times Square, where crowds huddled under umbrellas in the rain.
By examining the interior of Mars, scientists hope to understand how our solar system's rocky planets formed 4.5 billion years ago and why they turned out so different - Mars cold and dry, Venus and Mercury burning hot, and Earth hospitable to life.
NASA is collaborating with several global scientists who will help analyse the interior of Mars, and Giardini said his team will look out for seismic events and meteoritic impact.
Still, there are no life detectors aboard InSight.
After InSight landed, the two experimental satellites zoomed past Mars, their main job done.