How about visiting another world

The Mars Pathfinder robotic Rover, Sojourner, was the first vehicle landed to explore another planet. That happened July 4th, 1997. Until today, four rovers have successfully been operated on the surface of our red neighbour planet. March 10th, 2016, the Mars Reconnaissance Orbiter had kept a close eye at Mars for ten years. March 14th, 2016, the ExoMars […]

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Satellites in extraordinary orbits

Most of our satellites orbit the Earth – either in Low Earth Orbit, LEO, Medium Earth Orbit, or in Geostationary Orbit, GEO. The closer to the Earth a satellite is the shorter its period. So – What if the satellite is even further away than the geostationary satellites? Why would you place satellites that far […]

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To Venus with (love?)

Wherever you are early November you can see our closest planet, Venus, glimmering in the morning sky. Sometimes it appears as a morning star, sometimes like a bright evening star. Asteres planetai was the term used in ancient Greece before anyone got clues enough to build up a knowledge about these wandering stars. Now Venus is illuminating the […]

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Have a look – and see

“It’s beautiful!” Ok. That is reason enough to look at the dark sky. But, of course, there’s more to it. The good thing is that there is a lot more you can find out about the solar system just by looking at the moon and our closest planets with the naked eye! The image above […]

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About eclipses

The night between 27th and 28th of September we are getting the opportunity to experience a total lunar eclipse. The word “we”, doesn’t refer to some common right to see such an event every second year or so. It refers to the fact that a lunar eclipse happens on our moon, sometimes named “Luna”. That means that everyone […]

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About Orbits

When you look at the sky on a dark night without moonlight or lights from our cities, you don’t have to wait long before you see a glimmering spot gently moving across the sky. That’s most likely to be a satellite in Low Earth Orbit. The Low Earth Orbit, LEO, is between 160 and 2000 […]

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About our atmosphere.

Recently, we took a closer look at the water on the rather smooth sphere we live on. But how about our atmosphere – this thin layer of gasses surrounding the earth, kept in place by gravity? When you reach cruising altitude in a modern jet plane you have about 2/3 of the mass of the […]

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Eyes in Space

By learning about our home planet, we are preparing to deal with the great questions about our universe and about life itself. In fact, it’s not easy to get a good picture of our own galaxy, the Milky Way. The reason for that is simple: We are living inside it. Sitting in the middle of a […]

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