- NSF Research Experiences for Undergraduates : Summer research positions, great experiences and CV material!
- Blue Marble Space Science Institute: astrobiology / planetary science / science communication summer opportunities
- NASA internships: Can apply year-round
- Caltech SURF : Conduct your summer research right up the road
- UC Irvine scholarships for current undergraduates : big list of scholarships for UCI students
- Goldwater Scholarship : one of the big prestigious national scholarships for undergrads
- NSF Graduate Research Fellowship : senior undergraduates are eligible to apply
- APS/IBM Research Internship for Undergraduate Women: Feb. 14 deadline!