
Quick Summary
Written by Abigail Fraeman, Deputy Project Scientist, Jet Propulsion Laboratory, California Institute of Technology Earth planning date: Friday, July 24, 2026 Curiosity spent the week continuing to climb her way up through the layers of Mount Sharp, exploring the sedimentary rock strip chart of Martian history. The rover has reached a layer where the science […]
Space Explainer: Mapping Our Solar System
Our solar system contains eight planets, five recognized dwarf planets including Pluto, and well over 200 moons, along with countless asteroids and comets left over from its formation roughly 4.6 billion years ago. Every world in it formed from the same swirling disk of gas and dust around the young Sun, which is why terrestrial planets cluster near the Sun and gas giants dominate the outer solar system.
Spacecraft have now visited every planet at least once, but exploration remains wildly uneven — Mars and the Moon have been mapped in exhaustive detail, while Uranus and Neptune have each been seen up close for only a few days total, during single flybys decades ago.
Explore the Solar SystemSource: NASA
Read full story at NASA