The Astronaut Scholarship Foundation awards scholarships to undergraduate students in STEM disciplines, focusing on those with research potential and the drive to become leaders in their fields. Scholarship Search Engines: Websites like Fastweb, Scholarships.com, and Cappex allow you to search for STEM scholarships based on your field of study, academic level, and location. Many STEM scholarships, like the NSF Graduate Research Fellowship, specifically target graduate students pursuing research-based degrees in STEM fields.