10) Humans have not yet been to Mars, but scientists have sent spacecraft there to help them research this fascinating planet. The first spacecraft to land on Mars were the Viking Landers, which touched down on the surface in 1976. Want to learn more? Check out our facts about Earth, ...
10. Mercury’s surface has ice on it. In 2012, NASA’s MESSENGER spacecraft discovered water ice inside some of Mercury’s craters. Being so close to the sun, you might find it strange that Mercury could harbor any surface ice at all. But some parts of Mercury receives very little dire...
Mercury’s proximity to the Sun and speed relative to the Earth (47km/s compared to 30km/s) makes it a difficult planet to visit. As such on the NASA space craft Mariner 10 and PIONEER have passed by. Check out the Mercury page for more planet facts....
More Fun for Kids, Including 8 Activities, School Snacks, and Meal Prep Ideas Fun and Tasty Food Facts for Kids Spark an even greater interest in food with surprising facts about their favorite ingredients. Fruit Facts for Kids Apples are made up of 25 percent air, which is why they ...
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The Moon is the most well-known natural satellite orbiting the planet. Except for Mercury and Venus, all of the planets in the solar system have natural satellites. A satellite is an organic phenomenon (moon) or a spacecraft (artificial satellite) that orbits a bigger celestial body.How...
North American X-15 (1959–1968) –It was a hypersonic rocket-powered aircraft that reached the edge of outer space and returned with valuable data used in aircraft and spacecraft design. Project Mercury (1958–1963) –It was the first human spaceflight program of the United States with the...
First off, we’ve created guides on a variety of astronomy related topics, such as our guide to determining how much atelescope should cost, our guide tohow to use a telescope. We’ve also created a series of helpful guides for kids, such as our list ofastronomy facts(which any kids ...
Anyway, let’s get started with these 1000 random & interesting facts about literally everything! The scientific term for brain freeze is “sphenopalatine ganglioneuralgia.” Canadians say “sorry” so much that a law was passed in 2009 declaring that an apology can’t be used as evidence of...
Venus Facts For Kids The planet Venus is a little smaller than Earth and similar in mass and density, (what it’s made up of). It has a similar level of gravity too. It has no rings round it, no moons and it spins backwards. What this means is that on Ve