Penn State undergraduates present their work at the Eberly college's fall 2021 Undergraduate Research Poster Exhibition. Jennifer Bekker, an undergraduate majoring in biology, presents her work at the Eberly college's fall 2021 Undergraduate Research Poster Exhibition. Credit: Nate Follmer, Penn State Expand Jessica Tomasko, an undergraduate at Penn State Altoona majoring in mathematics, presents her work at the Eberly college's fall 2021 Undergraduate Research Poster Exhibition. Credit: Nate Follmer, Penn State Expand Michael Zaidel, an undergraduate majoring in physics and astronomy and astrophysics, presents his work at the Eberly college's fall 2021 Undergraduate Research Poster Exhibition. Credit: Nate Follmer, Penn State Expand Lauren Willett, an undergraduate majoring in astronomy and astrophysics, presents her work at the Eberly college's fall 2021 Undergraduate Research Poster Exhibition. Credit: Nate Follmer, Penn State Expand Ethan Ritchey, an undergraduate majoring in physics, presents his work at the Eberly college's fall 2021 Undergraduate Research Poster Exhibition. Credit: Nate Follmer, Penn State Expand