This Year at NASA: Mars, Asteroids, Discoveries and More
![This Year at NASA: Mars, Asteroids, Discoveries and More](https://media2.spaceref.com/news/2014/this_year_at_nasa_121914_945.jpg)
This Year at NASA.
NASA
In 2014, NASA took significant steps on the agency’s journey to Mars — testing cutting-edge technologies and making scientific discoveries while studying our changing Earth and the infinite universe as the agency made progress on the next generation of air travel. Here’s a look at some of the top NASA stories of the year.