Once on Mars, InSight will drill into the ground with a probe to offer mankind a first-ever look inside the Red Planet.
InSight, a $1 billion global project, includes a German mechanical mole that will burrow down 16 feet (5 meters) to measure Mars' internal heat.
NASA's Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) lander successfully touched down on the Red Planet after an nearly seven-month, 300-million-mile (458-million-kilometer) journey from Earth.
Another NASA spacecraft is on Mars after engineers successfully land it on Monday after seven months in space. Measurement of the changes in signal as it passed through the planet's atmosphere just before and after being blocked by the planet itself could provide information about atmospheric conditions.
Confirmation came minutes later from a pair of tiny satellites that had been trailing InSight throughout the six-month, 300-million-mile journey.
"This is a whole new way to compare what's happening on another planet to what we see on Earth", said Siebach. InSight will spend two years investigating the interior where the building blocks below the planet's surface that recorded its history.
Slowed by friction, deployment of a supersonic parachute and the firing of retro rockets, InSight descended 123km through pink skies to the surface in 6.5 minutes.
"Here's a quick-and-dirty attempt at processing out distortion in the first image from InSight", Emily Lakdawalla, senior editor at the Planetary Society, wrote on Twitter.
"It's taken more than a decade to bring InSight from a concept to a spacecraft approaching Mars - and even longer since I was first inspired to try to undertake this kind of mission".
Now that the landing part is over, the team needs to check that the solar arrays have opened up sufficiently to get the spacecraft fully up and running. "We also have orbital assets [such as NASA's Mars Reconnaissance Orbiter] that can then show us exactly where that impact was, because we are constantly mapping the surface".
The three-legged InSight settled on the western side of Elysium Planitia, the plain that NASA was aiming for. That's important as NASA prepares to deploy InSight's solar panels later today.
Coming back to InSight, Bridenstine added that everything we learn about Mars, such as whether it has water below its surface, will help humans eventually visit and access resources on the planet. In an interview in 2016, the Gemini 12 and Apollo 11 astronaut told Fox News that by 2040, astronauts could have visited Mars' moon Phobos, which could serve as a sort of stepping stone to the Red Planet.