Robotic vehicles from Firefly Aerospace of Texas and Ispace of Japan will part ways early Wednesday after launching from the same SpaceX rocket. Both are aiming for the lunar surface.
"It's half Pluto's size and 12% of its mass, which makes it much more similar to the Earth's moon than any othermoon in the solar system." For comparison, our moon is just a quarter of the ...
A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system. Both systems include a moon that is a large fraction of the size ...
Last quarter: The moon has moved another quarter of the way around Earth, to the third quarter position. The sun's light is now shining on the other half of the visible face of the moon.