about 2,420 to 2,600 F

The temperature of the inner core is far above the melting point of iron. The inner core’s intense pressure—the entire rest of the planet and its atmosphere—prevents the iron from melting. The pressure and density are simply too great for the iron atoms to move into a liquid state.

Answer Expert Verified. The inner core is a very dense solid material. It is mostly made up of iron and nickel which are both dense metal. Too much pressure in the inner core keeps it in a solid phase and having a very high density.

The team’s findings suggest the moon possesses a solid, iron-rich inner core with a radius of nearly 150 miles and a fluid, primarily liquid-iron outer core with a radius of roughly 205 miles.

There is water on the moon … along with a long list of other compounds, including, mercury, gold and silver. Turns out the moon not only has water, but it’s wetter than some places on earth, such as the Sahara desert. …

Crucially, the moon also lacks an atmosphere with breathable air. All this may make life on the moon seem impossible. Yet surprisingly, it isn’t. In fact, the essentials for human existence — air, water, food and shelter — theoretically aren’t as unattainable on the moon as you might expect.

The composition of the Moon is much like that of the Earth. Its rocks are similar to Earth rocks and contain many but not all of the same minerals. Gradually, the lava ocean cooled and solidified, forming the light-colored crust we call the lunar highlands, which still covers 80 percent of the Moon.

Neil Armstrong

Due to the resolution of the LRO cameras, shadows from the fabric of the flag can be seen but the pole cannot, showing that the flags did not disintegrate entirely. A photo review of the Apollo 11 site shows that Aldrin’s observation that the flag fell over was likely correct, as no flag was seen in the images.

The one flag that hasn’t been photographed is the Apollo 11 American flag, the historic first human moon landing on July 20, 1969. Robinson said the Apollo 11 flag cannot be photographed because it’s on the ground; the orbiter cameras can only capture the shadow of the flags around poles.

While those first several missions didn’t reach their target, NASA’s Mariner 4 finally did. The spacecraft launched on Nov. 28, 1964, and was the first to fly by Mars on July 14, 1965. It sent 21 photos of the Red Planet back to Earth.

All you have to do is head to the mars.nasa.gov website and complete the form. Once your name is approved it will then be etched onto a microchip which is placed aboard the next spacecraft for a mission (which may or not be identified yet). Once approved, you can also print out your very own boarding pass.

NASA is still aiming for human missions to Mars in the 2030s, though Earth independence could take decades longer. In November 2015, Administrator Bolden of NASA reaffirmed the goal of sending humans to Mars.