Bill Nelson: “What is the biggest threat to America? It wasn't Iran. It wasn't North Korea. It wasn't even the border.”

All of us have a responsibility to protect our home planet. After all, it's the only one we have.

We cannot identify every object. However, NEO Surveyor will be able to identify 90 percent of all the potential asteroids that are greater than 140 meters wide within the 10 years of the launch.

NASA is committed to building a diverse, skilled future STEM workforce--our next generation of explorers with the technical skills needed to carry forward our Nation's vital mission.

This time, even on the first crew, the ones that are coming here to Capitol Hill today, our first international astronaut is Jeremy Hansen.