Steve Christe – Page 3

Author: Steve Christe

Dr. Steven Christe is a Research Astrophysicist in the Heliophysics division at the NASA Goddard Space Flight Center in Greenbelt, Maryland. His background and interests have focused on the science of impulsive energy release on the Sun such as solar flares. He has worked on a number of sounding rocket launches (FOXSI) and a balloon mission (HEROES) which have matured x-ray detectors and grazing-incidence focusing optics. Dr. Christe was the PI for the FOXSI Small Explorer mission concept which was selected for a Phase A study and is currently leading the development of an x-ray detector on the PADRE small satellite mission. Dr. Christe is the Lead Scientist for the Heliophysics Strategic Technology Office (HESTO).

Vials of quantum dots glow in different colors under ultraviolet light. The colors of light emitted are determined by the nanoscale size and composition of the crystals in suspension. Image Credit: NASA / Mahmooda Sultana

Spectroscopy through Quantum Dots

by Steve Christeproject July 24, 2023August 30, 2023No Comments

Miniaturizing our measurement devices has become more important over the years as our missions needed an increasing number of spacecraft to enable systems science. Launching many spacecrafts at once, affordably means smaller spacecraft and less room for our instruments. Mahmooda Sultana, a Heliophysics Instrument Development for Science (H-TIDeS) principal investigator, has taken a novel approach …

2022 Heliophysics Phase 2 SBIR Selections

by Steve Christesbir, selection announcement July 24, 2023August 29, 2024No Comments

The 2022 Phase 2 SBIR Selections were recently announced. The following selections are relevant to Heliophysics. Dragster: An Ensemble Assimilative Model for Satellite Drag With the decreasing cost of launching objects into space, the number of objects in Earth orbit has significantly increased. Over 27,000 objects greater than 10 cm are tracked by the Department …