Why is a year on Saturn so much longer than a year on Earth?
Consider Saturn, which orbits the Sun at a distance of about 9.5 AU – i.e. nine and a half times the distance between the Earth and the Sun. Because of this, the speed with which it orbits the Sun is also considerably slower. As a result, a single year on Saturn lasts an average of about twenty-nine and a half years.
How many moons does Jupiter have?
79 moons
Jupiter has 53 named moons and another 26 awaiting official names. Combined, scientists now think Jupiter has 79 moons.
How many moons does Saturn have?
82 moons
Saturn has 82 moons. Fifty-three moons are confirmed and named and another 29 moons are awaiting confirmation of discovery and official naming. Saturn’s moons range in size from larger than the planet Mercury — the giant moon Titan — to as small as a sports arena.
Where on Earth Is East not clearly defined?
At almost any point on Earth, the four directions—north, south, east, and west—are well defined, despite the fact that our planet is round rather that flat. The only exceptions are exactly at the North and South Poles, where the directions east and west are ambiguous (because points exactly at the poles do not turn).
What causes a neap tide?
Neap tides, which also occur twice a month, happen when the sun and moon are at right angles to each other. In both cases, the gravitational pull of the sun is “added” to the gravitational pull of the moon on Earth, causing the oceans to bulge a bit more than usual.
Do Uranus have moons?
Uranus has 27 known moons, and they are named after characters from the works of William Shakespeare and Alexander Pope.
In which month the Earth is nearest to the sun?
January
In fact, the Earth is farthest from the sun in July and is closest to the sun in January! During the summer, the sun’s rays hit the Earth at a steep angle.
What was the first animal life on Earth?
The fossil of Charnia, which may have been the first animal to have lived on Earth, was found by an English schoolboy in 1957. This discovery caused a sensation because it came from rocks that were thought to be far too old to contain animal fossils.
Why was the ‘Earth’ named Earth?
The name “Earth” is around 1,000 years old and is derived from the Old English words ertha and eor(th)e, and the German word “erde.”. Earth is the only planet in the solar system capable of supporting biological life, while also providing everything needed to survive, including a sufficient, protective atmosphere.
What is the origin of the Earth?
Origin of Earth. Earth, along with the other planets, is believed to have been born 4.5 billion years ago as a solidified cloud of dust and gases left over from the creation of the Sun. For perhaps 500 million years, the interior of Earth stayed solid and relatively cool, perhaps 2,000°F.
What is the history of life on Earth?
The evolutionary history of life on Earth traces the processes by which both living organisms and fossil organisms evolved since life emerged on the planet, until the present. Earth formed about 4.5 billion years (Ga) ago and evidence suggests life emerged prior to 3.7 Ga.