Overview | Mars – NASA Solar System Exploration
Mars is the fourth planet from the Sun – a dusty, cold, desert world with a very thin atmosphere. Mars is also a dynamic planet with seasons, polar ice caps, canyons, extinct volcanoes, and evidence that it was even more active in the past.
In Depth | Mars – NASA Solar System Exploration
The fourth planet from the Sun, Mars is one of Earth's two closest planetary neighbors (Venus is the other). Mars is one of the easiest planets to spot in the night sky – it looks like a bright red point of light.
Mars By the Numbers – NASA Solar System Exploration
2025年1月9日 · Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.
Planet Compare – NASA Solar System Exploration
2025年1月9日 · Explore NASA's real-time science encyclopedia and compare the sizes of planets in our solar system.
What is a Planet? - NASA Solar System Exploration
Everyone knows that Earth, Mars and Jupiter are planets. But both Pluto and Ceres were once considered planets until new discoveries triggered scientific debate about how to best describe them—a vigorous debate that continues to this day.
In Depth - NASA Solar System Exploration
Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids.
Mars 3D Model – NASA Solar System Exploration
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More Kids Stuff | Kids – NASA Solar System Exploration
2025年1月9日 · Start your virtual exploration of the Red Planet with interactive games that put you in the driver's seat. Mars Funzone is the destination for Red Planet-related games, amazing facts, activities and special events related to the exploration of Mars.
In Depth - NASA Solar System Exploration
Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons. In the outer solar system, the gas giants Jupiter and Saturn and the ice giants Uranus and Neptune have dozens of moons.
Curiosity Tests a New Way to Drill on Mars - NASA Solar System …
2018年2月28日 · NASA's Curiosity Mars rover used a new drill method to produce a hole on February 26 in a target named Lake Orcadie. The hole marks the first operation of the rover's …