![In Memoriam: Jeff Dozier [1944–2024]](https://assets.science.nasa.gov/dynamicimage/assets/science/esd/earth-observer/2025/2025-in-memoriam/InMemoriam-Dozier1.jpg)
![In Memoriam: Berrien Moore III [1941–2024]](https://assets.science.nasa.gov/dynamicimage/assets/science/esd/earth-observer/2025/2025-in-memoriam/InMemoriam-Moore..jpg)
Surveyor 3 Stories
Earth planning date: Tuesday, Feb. 18, 2025 During today’s unusual-for-MSL Tuesday planning day (because of the U.S. holiday on Monday), we planned activities under new winter heating constraints. Operating Curiosity on Mars requires attention to a number of factors —…
Jorge Chong is helping shape the future of human spaceflight, one calculation at a time. As a project manager for TRON (Tracking and Ranging via Optical Navigation) and a guidance, navigation, and control (GNC) test engineer in the Aeroscience and…
Before Apollo astronauts set foot upon the Moon, much remained unknown about the lunar surface. While most scientists believed the Moon had a solid surface that would support astronauts and their landing craft, a few believed a deep layer of…