Solar System Exploration
Meteors & Meteorites
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New research shows streams of meteoroids striking the Moon infuse the thin lunar atmosphere with a short-lived water vapor.
Meteoroid Strikes Eject Precious Water From Moon
On Dec. 18, 2018, a large "fireball" — the term used for exceptionally bright meteors that are visible over a wide area — exploded about 16 miles (26 kilometers) above the Bering Sea.
NASA Instruments Image Fireball over Bering Sea
Here’s a lineup of the various kinds of small bodies that orbit the Sun and sometimes impact planets and each other.
The Usual Suspects: a Rogues Gallery of Asteroids, Comets and Other Witnesses to History
Photographing a meteor shower can be an exercise in patience, but with these tips – and some good fortune – you might be rewarded with a great photo.
How to Photograph a Meteor Shower
November brings planets, an asteroid, a comet and the Leonids meteor shower.
What's Up - November 2018
The path through the solar system is a rocky road. Asteroids, comets, Kuiper Belt Objects—all kinds of small bodies of rock, metal and ice are in constant motion as they orbit the Sun. But what’s the difference between them? Why do these miniature worlds fascinate space explorers so much?
10 Things: What's That Space Rock?
This summer offers plenty of opportunities for skywatchers looking to observe Mars, Saturn, Jupiter and meteors--with or without a telescope.
Look Up: Parade of Planets
'Oumuamua, the first known interstellar object to travel through our solar system, got an unexpected boost in speed and shift in trajectory last year, a new study shows.
Our Solar System's First Known Interstellar Object Gets Unexpected Speed Boost
Asteroid 2018 LA entered Earth’s atmosphere at about 9:44 a.m. PDT (12:44 p.m. EDT, 16:44 UTC), and later disintegrated in the upper atmosphere near Botswana, Africa.
Tiny Asteroid Discovered Disintegrates Hours Later
A blinding flash, a loud sonic boom, and shattered glass everywhere—this is what the people of Chelyabinsk, Russia, experienced five years ago when an asteroid exploded over their city the morning of Feb. 15, 2013.
Five Years After the Chelyabinsk Meteor, NASA Leads Efforts in Planetary Defense
A piece of a meteorite will be carried on board NASA's Mars 2020 rover mission, serving as target practice for a high-precision laser on the rover's arm.
A Piece of Mars is Going Home
Quadrantid meteors January 3-4, a West Coast-favoring total lunar eclipse, and time to start watching Mars!
What's Up - January 2018
A small meteorite may be the first discovered from the Martian surface or crust. It contains 10 times more water than other Martian meteorites from unknown origins.
Water Rich Meteorite Linked To Mars Crust
For the first time, scientists recovered celestial meteorites that have a definitive link with an asteroid from space.
NASA Team Finds Riches in Meteorite Treasure Hunt
A discovery by a NASA scientist of sugar and several related organic compounds in two carbonaceous meteorites provides the first evidence that another fundamental building block of life on Earth may have come from outer space.
NASA Scientist Finds Some Meteorites Not Sugar-Free
The idea that what humans witnessed and chronicled in 1178 A.D. was a major meteor impact that created the 22-kilometer (14-mile) lunar crater called Giordano Bruno is myth, a University of Arizona graduate student has discovered.
What Medieval Witnesses Saw Was Not Big Lunar Impact, Grad Student Says