The moon does reflect light from the sun, which is why it is visible in the night sky. The actual surface of the moon is mostly a dark grey color, reported by astronauts who have walked on it, but it appears a bright yellow or white in the sky due to the reflected light.
The moon reflects a different amount of light depending on where it is in Earth's orbit. When the moon is directly between the sun and Earth, humans are unable to see it as no light is directed towards the planet's surface. As it moves around Earth, more and more of the light is reflected until humans see a full moon.Learn More
Moon phases refers to the appearance of the moon in the night sky and how much of its visible surface is illuminated. As the moon travels through its orbit, the percentage of its illuminated surface facing Earth waxes and wanes between full illumination and full darkness. This creates several distinct phases: full, gibbous, quarter, crescent and new.Full Answer >
The moon travels in an elliptical orbit, and at perigee, the closest it gets to Earth, it stands about 225,623 miles, or 363,104 kilometers away.Full Answer >
The basic things people need for long-term survival on the moon include breathable air, water, food, power and pressurized shelter. Ideally, people should produce these resources on the moon because delivery costs to the moon are extremely expensive.Full Answer >
Space travel requires a lot of research and preparation, and by the time the Apollo program wrapped up in the 1970s, its total cost was about $30 billion, which would be well more than $100 billion dollars in 2015 money. This total cost reflects work that took place over several years.Full Answer >