Today in class we had a Skype chat with Tanya Harrison, a space scientist who worked on the mars rover, and we got to ask her questions about her job and what she knows about space.

Our questions were: How much does it cost to make the mars rover?

How long did it take in total to build and test the mars rover?

The mars rover Curiosity (the rover she worked the most with) in total costed around 2.1 billion dollars to make.  It took 8 years to build and test the rover before they launched it in space.

We also learned a lot from what other people asked, for example we learned that there could be alien life in our solar system, in mars and in some of the other planets moons.  I learned a lot from this Skype chat and it was a very good idea from my teacher.