They had a huge impact. Their calculations were critical for NASA's missions. Katherine Johnson's work, for example, ensured the safety and success of space flights.
Since I haven't read the particular 'New Yorker' story, it's difficult to provide a detailed account. However, in general, spaceflight flights can be grounded for a host of reasons. For example, problems with the rocket propulsion system could be a major cause. If there are issues with the engines not providing the correct thrust or if there are fuel leaks, that would be a significant safety hazard and a reason for grounding. Additionally, regulatory issues might also play a role. If new safety regulations are introduced and the spaceflight program doesn't meet those requirements immediately, it could lead to grounding as well.
The story of NASA sending men to the moon is truly inspiring. NASA launched a series of Apollo missions. The astronauts faced many challenges during their journey to the moon and while on it. For example, they had to deal with the harsh environment of space and the moon's surface. Their lunar landings were a testament to human ingenuity and the will to explore. The images and data they brought back have been invaluable for scientific research ever since.
One of NASA's latest success stories is the Perseverance rover on Mars. It has been successfully collecting samples and sending back valuable data about the Martian surface, geology, and potential for past life. This data is crucial for our understanding of the red planet.
I'm not sure specifically what a particular 'nasa graphic novel' is about as there could be many. But generally, it might be about NASA's space exploration missions, astronauts' experiences, or scientific discoveries in space. Maybe it tells stories of the first moon landing, or the exploration of Mars through vivid illustrations and engaging narratives.
Many NASA fiction novels often feature advanced space technology. For example, in 'The Martian', the use of space - worthy equipment and the challenges of making it work in a hostile environment like Mars are central. They also tend to have characters who are highly trained astronauts or scientists. These characters usually have to face extraordinary challenges in space, such as isolation as seen in '2001: A Space Odyssey'.