Just want to see who we come up with. I didn't realize how hard this is until I tried it. Just list the first 3 famous scientists you can think of that are still alive without looking it up. If you can't think of 3 or not sure if they are alive just guess or post as many as you can think of. Use whatever definition of "famous" or "scientist" you want.
Leaving a space to not reveal my own 3 before you try...