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Astronomy Facts & Trivia - Page 4

A space vehicle must move at a rate of at least 27.35km (17 miles) per second to escape Earth's gravity. Sciensational.com

The Sun loses 360 million tonnes of material each day. Sciensational.com

The Earth-Moon size ratio is the largest in our solar system, excepting Pluto-Charon. Sciensational.com

The Sun travels at a speed of 250km (155 miles) per second, but it still takes 230 million years for it to complete a single revolution of the galaxy. Sciensational.com

Olympus Mons on Mars is the largest volcano in our solar system, almost three times taller than Mount Everest on Earth.

Jupiter's core is non-metal, but due to the immense pressure inside Jupiter, the core has become a metal. This metal is liquid metallic hydrogen. Sciensational.com

The cosmos contains approximately 50,000,000,000 galaxies.

Sound travels about 4 times faster in water than in air. Sciensational.com

A large sunspot can last for about a week.

The Earth orbits the sun at an average speed of 107,220 kms per hour. Sciensational.com

There is a high and low tide because of our moon and the Sun. Sciensational.com

The moon is one million times drier than the Gobi Desert. Sciensational.comSubmitted by: Carol Cooper - United States

The moon is 27% the size of the Earth.

The Earth weighs 6.6 sextillion tons, or 5.97 x 1024 kg. Sciensational.com

Sunlight takes about 8 minutes & 20 seconds to reach the Earth at 186,282 miles/sec (299,792 Km/sec). Sciensational.com

An Astronaut can be up to 2 inches taller returning from space. The cartilage disks in the spine expand in the absence of gravity.