In Depth | Mars - NASA Solar System Exploration
The moons get their names from the horses that pulled the chariot of the Greek god of war, Ares. Phobos, the innermost and larger moon, is heavily cratered, with deep grooves on its surface. …
In Depth | Phobos – NASA Solar System Exploration
Phobos, gouged and nearly shattered by a giant impact crater and beaten by thousands of meteorite impacts, is on a collision course with Mars. Phobos is the larger of Mars' two moons …
In Depth | Earth's Moon – NASA Solar System Exploration
The brightest and largest object in our night sky, the Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate. It also …
In Depth | Venus – NASA Solar System Exploration
The ancient Romans could easily see seven bright objects in the sky: the Sun, the Moon, and the five brightest planets (Mercury, Venus, Mars, Jupiter, and Saturn). They named the objects …
In Depth | Jupiter – NASA Solar System Exploration
With four large moons and many smaller moons, Jupiter forms a kind of miniature solar system. Jupiter has 80 moons. Fifty-seven moons have been given official names by the International …
Cassini Orbiter | Spacecraft – NASA Solar System Exploration
Huygens entered the murky atmosphere of Titan, Saturn's biggest moon, and descended via parachute onto its surface - the most distant spacecraft landing to date. Cassini-Huygens was …
The Solar System and Beyond is Awash in Water
Apr 6, 2015 · On Mars, NASA spacecraft have found clear evidence that the Red Planet had water on its surface for long periods in the distant past. NASA's Curiosity Mars Rover …
Cassini - NASA Solar System Exploration
In concert, MIMI’s three sensors helped determine the charged particle populations of Saturn’s magnetosphere, as well as how the magnetosphere interacts with the solar wind. MIMI also …
Mars By the Numbers - NASA Solar System Exploration
Jan 9, 2025 · Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.
By the Numbers | Earth's Moon – NASA Solar System Exploration
The outer or uppermost part of a planet, moon, asteroid, comet or other body. km 2. square miles. km 2. km 2. square miles. km 2. SURFACE GRAVITY. The gravitational acceleration …