I helped invent the first personal computer, as well as the computer mouse.

My work in microbiology helped me to discover and understand blood plasma. This helped establish the American Red Cross which has blood banks and takes donation across the country.

I worked at a US naval base and studied satellites and radar. I helped invent Global Positioning Systems.

I was an educator that first started the idea of learning about black history in order to educate young people about the contributions of African Americans in history.

Which president made Black History Month a national observation?

As a child I was creative and adventurous. I later worked for NASA, engineering for the missions to Jupiter and Saturn.

Why is February the specific month to celebrate black history?

I was born in New York in the late 1950's. I am a teacher, professor, TV host, presidential advisor, and published writer. I continue to impact the lives of young people by explaining the complicated topics of astronomy in a very understandable way.

I became an astronaut in 1978 when I joined NASA, after graduating from MIT. I was the second african american to fly in space. I was part of the Challenger crew.