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The distance from the Earth to the sun is 92 million miles (146 million km). Even at the incredible speed of light, it takes 8 minutes for the sun's light rays to reach us once they leave the sun.

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Venus is the hottest planet in our solar system. The surface temperature on Venus is a burning 461.85 °C (863.33 °F). On Pluto it is so cold that liquid nitrogen turns to solid! Pluto's estimated surface temperature is around -228°C (-378°F).

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The fastest plane in the world is NASA's Boeing X-43A Scramjet, flying in the record books at a speed of Mach 9.6, or 7,350 mph (11,760 km/h).

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The densest planet in our solar system is our own Earth. The least dense is Saturn. If all the planets were placed in a massive ocean, only Saturn would float.

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Earth's gravity field extends well into outer space. It's strong enough to keep our moon in place, and will eventually pull back all the satellites we have launched into orbit.

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Contrary to what many people think, the earth is the closest to the sun in the middle of winter. It is not the distance, but the tilt of the earth that causes the temperature changes of the seasons.

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Mars has the tallest mountain known in our solar system, known as Olympus Mons. The mountain rises a whopping 16.8 miles (or 27 kilometers).

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Direct sunlight is essential for good health.

Direct sunlight is essential for good health. Not receiving enough sunlight is a condition called mal-illumination, resulting in Vitamin D deficiency, and other health issues.

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Around 60 tons of cosmic dust falls down to Earth from outer space every day.

Around 60 tons of cosmic dust falls down to Earth from outer space every day. Every breathing organism inhales some of this ancient dust, which long ago may have formed a star or a planet.

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The speed of sound in water is about four times faster than in air.

The speed of sound in water is about four times faster than in air. Since water is more dense than air, sound travels with greater ease.

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The earth spins around the sun at 66,480 miles/h (107,000 km/h). It takes a year to travel completely around, a distance of 584 million miles (940 million kilometers).

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In space, astronauts eat tortillas instead of bread due to safety reasons. Bread crumbs could get loose and damage delicate equipment on the spacecraft.

In space, astronauts eat tortillas instead of bread due to safety reasons. Bread crumbs could get loose and damage delicate equipment on the spacecraft.

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Astronomers think Neptune may have oceans that are made up of liquid diamonds.

Astronomers think Neptune may have oceans that are made up of liquid diamonds.

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The planet Saturn has 62 moons. One of it's moons named Titan is the only one in our solar system known to have an atmosphere.

The planet Saturn has 62 moons. One of it's moons named Titan is the only one in our solar system known to have an atmosphere.

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Lightning bolts strike Earth about 8 million times every 24 hours. That's around 100 lighting strikes each second.

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