D. K. Haggerty

The origin of RNA precursors on exoplanets.

Sudden cosmic ray decreases: No change of global cloud cover

Prebiotic chemistry and atmospheric warming of early Earth by an active young Sun

Variations of aerosol optical properties during the extreme solar event in January 2005

Long-Term Fluences of Solar Energetic Particles from H to Fe

Energy Spectra, Composition, and Other Properties of Ground-Level Events During Solar Cycle 23