Mars in a Minute: What's Inside Mars?
Transcript
What's inside Mars?
We know a lot about what's inside Earth.
But at Mars, we've only just scratched the
surface.
To learn how Mars formed, we have to study its
deep interior.
NASA's InSight lander was designed to do just
that by taking the planet's "vital signs:" - Listening for its
"pulse" or seismic activity, including any "Marsquakes"; - Taking its
temperature to see how much heat is flowing out from deep inside;- And checking its
"reflexes" to see how much the planet wobbles as it whips around the
Sun.
These all provide clues to what the planet is
really like inside.
So what's inside Mars?
InSight can help us find out by giving Mars its
first thorough checkup since it formed 4.5 billion years ago.
The more we learn, the better we'll understand all the rocky planets -- and the history of our solar system.