Asteroids, Comets & Meteors - NASA Solar System Exploration
Asteroids and comets – and the meteors that sometimes come from them – are leftovers from the formation of our solar system 4.6 billion years ago.
In Depth | Perseids – NASA Solar System Exploration
About the Meteor Shower The Perseid meteor shower, which peaks in mid-August, is considered the best meteor shower of the year. With swift and bright meteors, Perseids frequently leave long …
RPS 3D Viewer - NASA Solar System Exploration
Apr 9, 2026 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
In Depth | 1P/Halley – NASA Solar System Exploration
NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
Solar System Exploration
Apr 2, 2026 · The solar system has one star, eight planets, five dwarf planets, at least 290 moons, more than 1.3 million asteroids, and about 3,900 comets.
In Depth | 21P/Giacobini-Zinner – NASA Solar System Exploration
Discovery Comet Giacobini-Zinner was discovered on Dec. 20, 1900 by Michel Giacobini at the Nice Observatory in France. The comet was later recovered by Ernst Zinner in 1913 (October 23). …
Success! – NASA Solar System Exploration
Apr 13, 2021 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
Directory - NASA Solar System Exploration
Apr 9, 2026 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
In Depth | 2P/Encke – NASA Solar System Exploration
Comet Enke is the parent comet of the Taurid meteor stream. The Taurids, which peak in October/November of each year, are fast meteors (65,000 mph or 104,607 kph) and are known for …
Events | Solar System Ambassadors - NASA Solar System Exploration
May 18, 2023 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.