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9Kramer, Miriam. It also bans deploying nuclear weapons in outer space. An Astronomical Unit (AU) equates to roughly 93 million miles, or 150 million kilometers. A Blue Moon is not really blue. 55 Cancri e has a mass eight times that of Earth’s despite having half the radius, and may very well have a surface made up of graphite and diamonds. On the side that is facing towards the Sun it has a scorching surface temperature of over 700K (423 C), but on the other side it’s surprisingly freezing with temperatures below 0 C. 23. Some of the facts you can find here are so unbelievable, you could almost swear that somebody’s messing with you! Astronomers using Hubble data have published more than 15,000 scientific papers. Each of these has some sort of surface features, such as impact craters, volcanoes and canyons. The Universe (Science Concepts, Second Series). He enjoys writing about video games, television and general knowledge. Exoplanets are the planets we found that are outside our solar system. That moon is called Ganymede and is 33,279 miles (5,262 km) in diameter – that’s bigger than Mercury and it is visible with just a pair of binoculars! Not to worry though, this is going to happen in over 4 billion years from now, and even when it happens, galactic distances are so vast that the chances of a star or a planet hitting each other are almost non-existent. an Einstein-Rosen Bridge) is a hypothetical “tunnel” that connects two different points in space-time. It is estimated to be 23 million years away from the Milky Way. Do you know which man-made object is currently farthest from Earth? The full cost of a spacesuit is about $11 million. Skywatchers have long been fascinated by the Red Planet. Hold on tight as we take an in-depth look at what would happen if you found yourself stepping inside one! The red planet is also known for having some of the most impressive surface features. Ceres has a radius of around 950km, and strong enough gravity that it pulled itself into a roughly spherical shape, granting it the almost-planet title. Accessed: July 18, 2013. Pluto is not the only dwarf planet in our system. 49. It is a hyper giant that is almost a million times as big as the. This is the Velcro patch’s one and only purpose. Then, if one were to count, one, two, three, there we are! Astronauts in space would lose about 1% of their muscle mass each month if they didn’t exercise at least 2 hours a day. Milky Way has two major spiral arms that start at the central bar of stars, and slowly taper off. This is the only time when we can see the Sun’s corona from the Earth. Because Mars orbits the sun slower than the Earth, there are actually 687 Martian days in a Martian year! 51. 3Botham, Noel. These extrasolar planets are very hard to detect, and only in the past 10 years or so have we been able to regularly find new ones.

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