Kindness through knowledge
This image illustrates that space junk is a problem. Remember, though, that none of these bits are even as big as a pixel much less as enourmous as they seem to be in the image. This means that we can still do something about it – as we should! Click on the source link to […]
The first answer coming to mind is simply “Why not?”. But – There’s a lot more to it. First of all, teachers should be updated on space science. We all should. It’s not an easy task, though. Just reading the news about space science and space technology takes time. Understanding the basic concept often takes […]
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 […]
A satellite in Low Eart Orbit, LEO, can cover just one certain area of the Earth’s surface at a time. The same thing goes when it comes to contacting the satellite. To download data from the satellite, or to send commands to the satellite is possible only during the few minutes each orbit it passes right […]
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 […]
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 […]
Our climate is a complex phenomenon. In the atmosphere, there is about 0,04% carbon dioxide. The discussions about the climate, though, could be up to 100% about carbon dioxide. Thinking it over once more, you’ll find that this tiny amount of carbon dioxide, CO2, is easier to double than the 21% oxygen in the Earth’s atmosphere. Burning […]
We breathe and we eat. Oxygen and carbohydrates. Oxygenator and fuel. One key ingredient to life on Earth is photosynthesis. To keep an eye on the Earth’s health, we have to monitor the photosynthesis. And – Our planet is an ocean planet, so we start our journey at sea. The Baltic Sea. The picture shows […]
Imagine observations of our home planet, worldwide, being continuously updated – without satellites. Is that even possible? Our planet is changing – although the changes are tiny -; the human population is both growing and changing in a way that causes large resources to be needed in few dense areas. By using satellites as our […]
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 […]
