In Depth | Mars – NASA Solar System Exploration
Mars is no place for the faint-hearted. It’s dry, rocky, and bitter cold. 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.
Overview | Mars – NASA Solar System Exploration
Mars is one of the most explored bodies in our solar system, and it's the only planet where we've sent rovers to roam the alien landscape. NASA currently has two rovers (Curiosity and Perseverance), one lander , and one helicopter exploring the surface of Mars.
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 and is 17 x 14 x 11 miles (27 by 22 by 18 kilometers) in diameter.
In Depth | Moons – 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.
Planet Compare - NASA Solar System Exploration
6 days ago · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
By the Numbers | Earth's Moon – NASA Solar System Exploration
The speed needed for an object to break away from the gravitational pull of a planet or moon.
In Depth | Earth's Moon – NASA Solar System Exploration
The leading theory of the Moon's origin is that a Mars-sized body collided with Earth about 4.5 billion years ago. The resulting debris from both Earth and the impactor accumulated to form our natural satellite 239,000 miles (384,000 kilometers) away.
Lunar and Martian Lava Tube Exploration as Part of an Overall ...
6 days ago · This paper discusses the opportunity to search for and exploit lava tubes on the surfaces of the Moon and Mars as a means of enabling ambitious planetary science missions. [FINAL VERSION]
Mars By the Numbers - NASA Solar System Exploration
6 days ago · Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.
Comparative Planetary Climate Studies - NASA Solar System …
Panel Selection: Inner Planets: Mercury, Venus, and the Moon. Mars: Not Phobos and Deimos.