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Astronomy Facts & Trivia - Page 3

sun, jupiter and earth size comparisonAbout 1000 Earths would fit inside Jupiter - and the Sun could hold about 1000 Jupiters. Sciensational.com

voyager 1Voyager 1 spacecraft is the farthest human-made object in the universe. Sciensational.comSubmitted by: Hyde

planet saturnThe planet Saturn has a density lower than water. So, if placed in water it would float. Sciensational.comSubmitted by: Am, Singapore

The speed of light - 299 million metres a second - would still take about 26 billion years to reach one end of the visible universe to the other. Sciensational.comSubmitted by: Nik, India

planet uranusOn 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. Sciensational.comSubmitted 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

red dwarf starA dwarf star is so dense that it would take 8 men to lift a teaspoon full of its matter. Sciensational.comSubmitted 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. Sciensational.com

The Earth is the densest planet in the Solar System. Sciensational.com

The Moon orbits the Earth every 27.32 days Sciensational.com

Every second, the Sun pumps more than a million tons of material into the space through the solar wind (electrically charged particles.)

planet venusThe planet Venus does not tilt as it goes around the Sun, so consequently, it has no seasons. Sciensational.com

NeptuneSince Neptune's discovery in 1846, it has made just about three-quarters of one revolution around the Sun. Sciensational.com

The pressure at the centre of the Earth is 27,000 tons per square inch.

UranusUranus is tipped on its side so that one pole is pointed at the Sun, so its poles are warmer than its equator. Sciensational.com

The smallest planet in our Solar System is Pluto (now called 'dwarf planet' and not a true planet.)

the milky way galaxyA cosmic year is the amount of time it takes the Sun to revolve around the center of the Milky Way, about 225 million years. Sciensational.com

mercuryA 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. Sciensational.com