How many Pakistani in NASA?

There are a number of Pakistani scientists, engineers, and researchers working at NASA. Some notable Pakistani scientists at NASA include:

* Salima Mezhoud: Astrophysicist and Senior Project Scientist at NASA's Goddard Space Flight Center. Her work focuses on the study of black holes and other compact objects.

* Navid Ahsan: Aerospace engineer and Deputy Director of the Advanced Concepts Office at NASA's Jet Propulsion Laboratory. His work focuses on the development of next-generation space propulsion technologies.

* Arif Masud: Physicist and Senior Research Scientist at NASA's Langley Research Center. His work focuses on the development of materials and structures for extreme environments.

* Imran Bashir: Computer scientist and Senior Research Scientist at NASA's Ames Research Center. His work focuses on the development of artificial intelligence and machine learning technologies for space exploration.

* Syed Shakir Hussain: Electrical engineer and Senior Research Scientist at NASA's Glenn Research Center. His work focuses on the development of power and energy systems for space exploration.

In addition to these individuals, there are many other Pakistani scientists, engineers, and researchers working at NASA in a variety of roles. Their contributions have been instrumental in the success of many of NASA's missions and programs.