
In Depth | Earth's Moon – NASA Solar System Exploration
Scientists have discovered that water is being released from the Moon during meteor showers. Credit: NASA's Goddard Space Flight Center Scientists also found the lunar surface releases its water when …
In Depth | Perseids – NASA Solar System Exploration
With swift and bright meteors, Perseids frequently leave long "wakes" of light and color behind them as they streak through Earth's atmosphere. The Perseids are one of the most plentiful showers with …
Planet Compare – NASA Solar System Exploration
Oct 21, 2025 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
RPS 3D Viewer - NASA Solar System Exploration
Oct 21, 2025 · Asteroids, Comets & Meteors About Asteroids, Comets & Meteors BY TYPE Meteors & Meteorites Asteroids Comets
In Depth | 1P/Halley – NASA Solar System Exploration
This debris stream results in two weak meteor showers each year: the Eta Aquarids in May and the Orionids in October. Size Halley's dimensions are about 9.3 by 5 miles (15 kilometers by 8 …
Asteroids, Comets & Meteors - NASA Solar System Exploration
Our solar system’s small bodies – asteroids, comets, and meteors – pack big surprises. These chunks of rock, ice, and metal are leftovers from the formation of our solar system 4.6 billion years ago.
Directory - 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.
The Kuiper Belt should not be confused with the Oort Cloud, which is a thousand times more distant. In 1950, astronomer Jan Oort proposed that certain comets come from a vast, extremely distant …
In Depth | 2P/Encke – NASA Solar System Exploration
The Taurids, which peak in October/November of each year, are fast meteors (65,000 mph or 104,607 kph) and are known for their fireballs. Fireballs are meteors that are as bright or brighter than the …
Psyche Raw Image: Imager B - NASA Solar System Exploration
BY DESTINATION Earth (1) Mars (2) Jupiter (95) Saturn (83) Uranus (27) Neptune (14) Pluto (5) Asteroids, Comets & Meteors About Asteroids, Comets & Meteors BY TYPE Meteors & Meteorites …