 Saturn's moon Titan has hundreds of times more oil and natural gas than all the known reserves on Earth. | Interstellar space is not complete vacuum: there are a few hydrogen atoms per cubic centimeter. Submitted by: Sruthi R - |
If a pinhead-size piece of the Sun were placed on Earth, one would have to stand as far as 145 kilometers (90 miles) away to be safe.
Submitted by: Sruthi R - |  The star "Lucy" in constellation Centaurus is actually a huge cosmic diamond of 10 billion trillion trillion carats. Submitted by: Sruthi R - |
 A neutron star has such density that a teaspoonful of its matter would weigh more than all the people on Earth.
Submitted by: Sruthi R -
|  Although it is closest to the Sun, Mercury has ice in its craters. Submitted by: Jeuel -
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 Due to its size, Pluto's moon Charon is also considered to be a double dwarf planet (two planets orbiting each other), rather than a moon orbiting its planet. Submitted by: Jeuel -
|  Jupiter is so big that twice the mass of the rest of our Solar System's planets combined would still not be enough to equal its mass. |
 Made up of billions of pieces of ice, the average thickness of each of Saturn's seven giant rings only ranges from about 200 to 3000 meters. |  The deepest surface point on Mars is Hellas, about 3 km deep. |
 Pluto is no longer considered a planet. It is now known as a "Dwarf Planet". Submitted by: Saphira - Lancaster, Ohio, United States | The full moon always rises at sunset and sets at sunrise. |
 About 1000 Earths would fit inside Jupiter - and the Sun could hold about 1000 Jupiters. |  Voyager 1 spacecraft is the farthest human-made object in the universe. Submitted by: Hyde |
The planet Saturn has a density lower than water. So, if placed in water it would float. Submitted by: Am, Singapore | The speed of light - 299 million meters a second - would still take about 26 billion years to reach one end of the visible universe to the other. Submitted by: Nik, |
 On Uranus, each pole gets around 42 years of continuous sunlight, followed by 42 years of darkness.
Submitted by: Nicci - Jacksonville, North Carolina, United States | The sky is blue because when sunlight collides with our atmosphere, colours of the shortest wavelengths (violet and blue) are scattered - and our eyes are more sensitive to see blue. Submitted by: K - New York, United States |
One of Jupiter's moons is believed to grow and shrink because of the water beneath its frozen surface. Submitted by: Jay - United States |  A dwarf star is so dense that it would take 8 men to lift a teaspoon full of its matter. Submitted by: Hades - Milledgeville, Georgia, United States |
The number of neuron cells in our brain is more than the total number of stars in our galaxy. Submitted by: sidd | The planet Venus has the longest day. |
The Earth is the densest planet in the solar system. | The moon orbits the Earth every 27.32 days |
Every second, the Sun pumps more than a million tons of material into the space through the solar wind (electrically charged particles.) |  The planet Venus does not tilt as it goes around the Sun, so consequently, it has no seasons. |
 Since Neptune's discovery in 1846, it has made just about three-quarters of one revolution around the Sun. | The pressure at the centre of the Earth is 27,000 tons per square inch. |
 Uranus is tipped on its side so that one pole is pointed at the Sun, so its poles are warmer than its equator. | The smallest planet in our solar system is Pluto (now called 'dwarf planet' and not a true planet.) |
 A cosmic year is the amount of time it takes the Sun to revolve around the center of the Milky Way, about 225 million years. |  A day on the planet Mercury is twice as long as its year. Mercury rotates very slowly but revolves around the Sun in slightly less than 88 days. |
 The star Alpha Herculis is so big that 25 of our entire solar system would have to be placed end to end to equal the star's diameter. | The star Sirius B is so dense, a handful of it weighs about 454,000 kgs (1 million pounds.) |
The Sun contains over 99.8 percent of the total material (mass) in our solar system, while Jupiter contains most of the rest. | The Sun is 330,330 times larger than Earth. |
The sun is about 149 million kms (93 million miles) from earth, yet it's 270,000 times closer than the next nearest star, which is 4.3 light years away. Submitted by: damandude - Missouri, United States | A neutron star is the strongest magnet in the universe. |
A new star is born in our galaxy every 18 days. | If a pulsar's (small star made up of densely packed neutrons) piece the size of a small coin landed on Earth, it would weigh approximately 100 million tons. |
