<p>I’d also consider working for an agency like the FBI. Physical science majors are one of their preferred college majors. Work a job for several years then apply. At the height of their careers, FBI agents can make $70+k or more, have excellent benefits, and pretty good job security. The FBI makes people retire after 20 years or after the age of 55, so there will be a lot of spots opening up as more and more baby boomers get older.</p>