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.

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.

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.

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.

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.

2025年1月9日 · Mars Click for more Venus Click for more Saturn Click for more Uranus Click for more Neptune Click for more ... PLANETS Mercury; Venus; Earth; Mars; Jupiter; Saturn; Uranus; Neptune; DWARF PLANETS Pluto; Ceres; Makemake; Haumea; Eris; HYPOTHETICAL Planet X; Moons. About Moons; BY DESTINATION Earth (1) Mars (2) Jupiter (95) Saturn (83) Uranus ...

2018年7月16日 · 9. Dawn could provide insights into the history of our own planet. The main asteroid belt may have been a source of water for planets in the inner solar system, in particular Earth and Mars. Ceres provides clues about how water, an essential ingredient for life on Earth, may have gotten here.

2024年5月7日 · Jupiter is the fifth planet from the Sun, and the largest in the solar system – more than twice as massive as the other planets combined.

2019年2月13日 · These conditions could have served as a cradle for life on Mars at a time when life first emerged on Earth. Opportunity contributed several key findings to this conclusion. It was the first rover to identify and characterize sedimentary rocks on a planet other than Earth.

2025年1月9日 · Mars Click for more Venus Click for more Saturn Click for more Uranus Click for more Neptune Click for more ... PLANETS Mercury; Venus; Earth; Mars; Jupiter; Saturn; Uranus; Neptune; DWARF PLANETS Pluto; Ceres; Makemake; Haumea; Eris; HYPOTHETICAL Planet X; Moons. About Moons; BY DESTINATION Earth (1) Mars (2) Jupiter (95) Saturn (83) Uranus ...