Planetary Science

Saturn is the planet with the most visible rings. Saturn's rings are one of the most iconic symbols of astronomy.
Saturn is the planet in our solar system that is famous for the rings.

Ultraviolet rays from the sun are prevented from reaching Earth.

moderate temperatures and strong gravity (APEX)

gravity

When a star explodes, it is referred to as a nova. If the star is large enough, it will create a super nova. And if the star is dense enough, it does not explode, but instead collapses on itself and forms a black hole

what is the terrestrial planet that has no atmosphere

Mercury is the smallest of the terrestrial planets.

elliptical galaxy....

For most of the life of a star, there is a balance between pressure caused by heat in the core and weight of gravity the star's mass.

There is an equilibrium, or very close to it, all throughout the star. At each point in the star, the mass above is pressing down due to gravity, but because the matter in the star is so hot, there is a balancing pressure holding up the mass above. At the core, the temperature is highest and the pressure is greatest and both decrease towards the surface.

Once the fuel at the center of a star become exhausted, the stellar equilibrium is lost and the life of the star begins to fade. Depending on the mass of the star, this may be relatively quiet (small stars) or bigger stars can produce a super nova and for the largest stars the end can be a black hole.

Outward pressure and inward gravity

This is the Doppler Effect.

Astronomers use "spectroscopy" to analyse redshifts.

Saturn

Neptune

In a full moon, the Moon is on the other side of Earth from the Sun. In a solar eclipse, the Moon is on the SAME side of the Earth as the Sun.

cosmic microwave background radiation.

The Doppler effect.

The Doppler effect.

The Doppler effect.

The Doppler effect.

Pluto has five moons.

the giant red spot is found in the planet jupiter.

All of our Solar Systems gas giants have more moons than the terrestrial planets.

Jupiter (63), Saturn (62), Uranus (27) and Neptune (13).

first it is a nebula, a large cloud of gas and dust that is spread out in an immense volume. After it forms a protostar, which is a large cloud of gas and dust with enough mass to form a star. Then it matters what is that star's mass. it could be a high mass star or a small or medium mass star like our sun.

Pluto barks. Goofy talks.

Mars

When the moon is on the side of the earth opposite the sun you get a full-moon.

Pluto has a moon that is about half its size

Plate movements