Astrophysics: Theoretical Cosmic-Ray Astrophysics

Astrophysics:
Theoretical Cosmic‑Ray Astrophysics

Join the NASA Postdoctoral Program (NPP) as a postdoctoral fellow to conduct theoretical research on cosmic‑ray phenomena at the Goddard Space Flight Center in Greenbelt, Maryland.

• Develop Monte Carlo simulations to study particle acceleration in plasma shocks.
• Construct analytic models of charged‑particle propagation through disordered magnetic fields.
• Investigate shock‑acceleration theories and their role in shaping the high‑energy spectrum.
• Examine cosmic‑ray composition changes resulting from interstellar collisions.
• Explore the origin of light elements (Li, Be, P) and the cosmic‑ray knee at ~3×10^15 eV.
• Collaborate with the Laboratory for High‑Energy Astrophysics to advance NASA’s missions in space science.

• Doctoral degree in astrophysics, high‑energy physics, or a related field.
• U.S. citizen, lawful permanent resident (LPR), foreign national eligible for a J‑1 visa, or LPR applicant in the U.S. with I‑485 or I‑589 status and a valid EAD card.
• Strong background in theoretical astrophysics, plasma physics, or cosmic‑ray research.
• Experience in numerical simulations, Monte Carlo methods, or analytic modeling of astrophysical systems.
• Excellent written and oral communication skills.

All applications must be submitted through the NASA Postdoctoral Program website. A complete application includes:

• Research proposal outlining the scientific goals and methods.
• Three letters of recommendation.
• Official doctoral transcript documents.

Final date to receive applications:
March 1 2026 6:00:59 PM Eastern Time Zone.

Contact: npp (Program Coordinator). Advisor:
Tonia Venters, tonia.m.venters, 301‑614‑5546.