Consider how atmospheres form. Given that Venus, Earth, and Mars are all terrestrial planets, discuss how they could end up with such different atmospheres.
How does the distance from the Sun affect the atmospheric composition?
How does the distance from the Sun affect the atmospheric composition?
Orbital Speed/Angular Diameter
Because of the presence of Jupiter, the Sun moves in a small orbit of radius 742,000 km with a period of 11.86 years. (a) Calculate the Sun's orbital speed in meters per second. (b) An astronomer on a hypothetical planet orbiting the star Vega, 25 light-years from the Sun, wants to use the astrometric method to search for plan ...continues
Do we know where cosmic rays come from? If so, what are some of the sources? Do we know all of them?
Do we know where cosmic rays come from? If so, what are some of the sources? Do we know all of them?
What do we see in other wavelengths that we don't see in visible light?
What do we see in other wavelengths that we don't see in visible light? And, are neutrinos EM radiation?
How do we know that someone living on Mars, could live on Earth?
When they look at life on another planet, I think that the base is Earth, how does it compare to the atmosphere on Earth? How do we know that someone living on Mars, could live on Earth? So just because the atmosphere has little oxygen, does that mean that some other life can live without it?
What is different about the Moon that means it doesn't have an atmosphere?
What is different about the Moon that means it doesn't have an atmosphere?
What types of objects emit X-rays?
What types of objects emit X-rays? Why do they emit X-rays and not other wavelengths? Why do other objects not emit X-rays?
Do cosmic rays come from planets?
Do cosmic rays come from planets?
If you were to build a colony on the Moon, what would you do?
If you were to build a colony on the Moon, what would you do?
