Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
Mars spacecraft size comparison From left to right: Yinghuo-1, Mars Reconnaissance Orbiter, Mars Odyssey, Mars Exploration Rover. Yinghuo-1: Chen et al., 2010; MRO/ODY/MER: NASA / JPL-Caltech (composite by Emily Lakdawalla)