Home Page
Quick Facts
Some
Facts
Universe
No. Even if your spaceship could withstand the enormous pressures, ...
Very big. Even though Jupiter is largely gas it weighs 320 times as ...
The Great Red Spot or GRS is a huge swirling storm in Jupiter's ...
Jupiter has 16 moons-four big ones, discovered by Galileo as long ago ...
Jupiter spins faster than any other planet. Despite its huge size, it ...
Saturn's moon Titan is very special because it is the only moon in ...
Saturn has at least 18 moons, including lapetus, which is black on ...
Saturn's rings occur in broad bands labelled with the letters A to G. ...
Saturn may be big, but because it is made largely of liquid hydrogen, ...
Saturn's winds are even faster than Jupiter's and roar round the ...
Jupiter and Saturn are made largely of hydrogen and helium. On ...
Venus reflects sunlight so well it shines like a star. But because it ...
Venus's atmosphere would be deadly for humans. It is very deep, so ...
Temperatures on Mercury veer from one extreme to the other because it ...
Not without your own oxygen supply. Mercury has almost no atmosphere ...
Each of the inner planets is formed a little bit like an egg-with a ...
The Viking landers of the 1970s found not even the minutest trace of ...
Mars is red because it is rusty. The surface contains a high ...
One night American astronomer Asaph Hall got fed up with studying ...
Flares are eruptions from the Sun's surface that fountain into space ...
The solar wind is the stream of radioactive particles constantly ...
The sun is a middle-aged star and probably formed about five billion ...
The Sun gets its heat from nuclear fusion. Huge pressures deep inside ...
The surface of the Sun is a phenomenal 11,000°F (6,000°C), and would ...
The Sun's crown is its corona, its glowing white hot atmosphere seen ...
The Sun is a small to medium-sized star 0.86 million miles (1,392,000 ...
A solar eclipse is when the Moon comes in between the Sun and the ...
The Moon's mantle is now very cool compared to the Earth's. The ...
The Moon's gravity draws the oceans into an oval around the Earth, ...
The harvest moon is the full moon nearest the autumnal equinox (when ...
The moon looks like cheese because it is full of holes, and sometimes ...
The Moon is by far the brightest thing in the night sky. But it has ...
As the Moon goes round the Earth, sometimes it passes right into ...
It takes the Moon 27.3 days to circle the Earth, but 29.53 days from ...
The large dark patches visible on the Moon's surface are called seas, ...
The first men on the Moon were Neil Armstrong and Buzz Aldrin of the ...
The Earth is the only planet with temperatures at which water can ...
In the 1500s, most people thought the Earth was fixed in the center ...
The Earth is not quite a perfect sphere. Because it spins faster at ...
Satellite measurements show it is 24,870 miles (40,024 km) around the ...
The Earth has a core of iron and nickel, and a rocky crust made ...
The Earth is about 4.6 billion years old. The oldest rock is about ...
The Earth spins because it is falling around the Sun. As the Earth ...
A day is the time Earth takes to turn once. The stars come back to ...