In Depth | Earth's Moon – NASA Solar System Exploration
While you were there, you'd notice that the gravity on the surface of the Moon is one-sixth of Earth's, which is why in footage of moonwalks, astronauts appear to almost bounce across the surface. The temperature on the Moon reaches about 260 degrees Fahrenheit (127 degrees Celsius) when in full Sun, but in darkness, the temperatures plummet to ...
10 Need-to-Know Things About Mercury - NASA Solar System …
Mercury is a rocky planet, also known as a terrestrial planet. Mercury has a solid, cratered surface, much like the Earth's moon.
By the Numbers | Earth's Moon – NASA Solar System Exploration
Twelve of the 24 men who traveled from Earth to the Moon walked on its surface. The first, and most famous, was Neil Armstrong in 1969. The last man on the Moon – to date – was Gene Cernan in 1972.
In Depth | Earth – NASA Solar System Exploration
When Earth was a young planet, a large chunk of rock smashed into it, displacing a portion of Earth's interior. The resulting chunks clumped together and formed our Moon. With a radius of 1,080 miles (1,738 kilometers), the Moon is the fifth largest moon in our solar system (after Ganymede, Titan, Callisto, and Io).
In Depth | Mercury – NASA Solar System Exploration
Mercury's outer shell, comparable to Earth's outer shell (called the mantle and crust), is only about 400 kilometers (250 miles) thick. Surface Mercury's surface resembles that of Earth's Moon, scarred by many impact craters resulting from collisions with meteoroids and comets.
In Depth | Venus – NASA Solar System Exploration
The planet is nearly as big around as Earth – 7,521 miles (12,104 kilometers) across, versus 7,926 miles (12,756 kilometers) for Earth. From Earth, Venus is the brightest object in the night sky after our own Moon.
Earth's Moon 3D Model - NASA Solar System Exploration
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Moons | Science – NASA Solar System Exploration
Among Saturn’s natural satellites, Cassini found the only known world aside from Earth’s moon to have a statically charged surface (Hyperion).
10 Need-to-Know Things About Io - NASA Solar System Exploration
The moon Io is the most volcanically active world in the solar system. Io even has lakes of molten silicate lava on its surface.
Earth's Oldest Rock Found on the Moon - NASA Solar System …
Jan 24, 2019 · The rock crystallized about 20 kilometers beneath Earth’s surface 4.0-4.1 billion years ago. It was then excavated by one or more large impact events and launched into cislunar space.