Mariana Hidalgo

Saturn

Saturn

Aturno is the sixth planet in the solar system, the second in size and mass after Jupiter and the only one with a ring system visible from Earth. Its name comes from the Roman god Saturn. It is part of the so-called outer or gaseous planets. The most characteristic aspect of Saturn are its bright rings. Before the invention of the telescope, Saturn was the farthest of the known planets and, at first glance, did not seem bright or interesting

Moon

The Moon is the only natural satellite on Earth. With an equatorial

diameter of 3474 km, it is the fifth largest satellite in the solar system,

while the proportional size compared to its planet is the largest satellite:

a quarter of the diameter of the Earth and 1/81 of its mass. After Io,

it is also the second densest satellite. It is in synchronous relation

with the Earth, always showing the same face towards the planet.

The visible hemisphere is marked with dark lunar seas of volcanic

origin between the bright ancient mountains and the prominent

astroblems.

Moon

Neptune

Neptune

Neptune is the eighth planet in distance from the Sun and the farthest from the solar system. It is part of the so-called outer planets or gaseous giants, and it is the first one that was discovered thanks to mathematical predictions. Its name was put in honor to the Roman God of the sea -Neptune-, and it is the fourth planet in diameter and the third largest in mass. Its mass is seventeen times that of Earth and slightly larger than that of its "twin" planet Uranus, which has fifteen land masses and is not as dense.

The fourth planet from the sun, is a cold, dusty place. The dust, an iron oxide, gives the planet its reddish cast. Mars shares similarities with Earth: It is rocky, has mountains and valleys, and storm systems ranging from localized tornado-like dust devils to planet-engulfing dust storms. It snows on Mars. And Mars harbors water ice. Scientists think it was once wet and warm, though today it’s cold and desert-like.

The fifth planet from the sun, Jupiter is huge and is the most massive planet in our solar system. It’s a mostly gaseous world, mostly hydrogen and helium. Its swirling clouds are colorful due to different types of trace gases. A big feature is the Great Red Spot, a giant storm which has raged for hundreds of years. Jupiter has a strong magnetic field, and with dozens of moons, it looks a bit like a miniature solar system.

The sixth planet from the sun is known most for its rings. When Galileo Galilei first studied Saturn in the early 1600s, he thought it was an object with three parts. Not knowing he was seeing a planet with rings, the stumped astronomer entered a small drawing — a symbol with one large circle and two smaller ones — in his notebook, as a noun in a sentence describing his discovery. More than 40 years later, Christiaan Huygens proposed that they were rings. The rings are made of ice and rock. Scientists are not yet sure how they formed. The gaseous planet is mostly hydrogen and helium. It has numerous moons.

The seventh planet from the sun, Uranus is an oddball. It’s the only giant planet whose equator is nearly at right angles to its orbit — it basically orbits on its side. Astronomers think the planet collided with some other planet-size object long ago, causing the tilt. The tilt causes extreme seasons that last 20-plus years, and the sun beats down on one pole or the other for 84 Earth-years. Uranus is about the same size as Neptune. Methane in the atmosphere gives Uranus its blue-green tint. It has numerous moons and faint rings.

The eighth planet from the sun, Neptune is known for strong winds — sometimes faster than the speed of sound. Neptune is far out and cold. The planet is more than 30 times as far from the sun as Earth. It has a rocky core. Neptune was the first planet to be predicted to exist by using math, before it was detected. Irregularities in the orbit of Uranus led French astronomer Alexis Bouvard to suggest some other might be exerting a gravitational tug. German astronomer Johann Galle used calculations to help find Neptune in a telescope. Neptune is about 17 times as massive as Earth.