1: Exploring the unknown comes with challenges for NASA, including radiation exposure and long-duration spaceflight.

2: Deep space travel requires advanced propulsion systems and sustainable life support technologies.

3: NASA must develop advanced spacecraft that can withstand the harsh conditions of deep space.

4: Communication delays and navigation uncertainties pose challenges for astronauts on long missions.

5: Health risks such as muscle and bone loss, as well as psychological impacts, are significant hurdles for NASA.

6: Resource management and sustainability are crucial for extended deep space missions.

7: The lack of access to essential resources like food, water, and oxygen adds complexity to space travel.

8: Technological advancements are necessary to address the challenges of deep space exploration.

9: Collaboration with international partners and innovative solutions are key to overcoming the obstacles NASA faces in deep space travel.