Astronomy and telecommunications have one common thing, the great amount of abbreviations and strange concepts. Few years ago I worked for Ericsson, and the very first things I came across with were those strange abbreviations, such as SS7, M-MGw, EDGE and ATM. When I began interested in astronomy I noticed that the amount …

I work in a company that produces environment measurement and weather forecasting devices. I recently read a book of space weather, written by Heikki Nevanlinna. There was an interesting story of the most awesome space weather storm of all time. This post is an outline of that interesting phenomenon.
Back in September 2nd in …

The giant planet Jupiter has a number of moon orbiting from which four are the biggest ones, namely Io, Europa, Ganymedes and Callisto. Jupiter’s moons are very interesting because they all have differences. This article provides a short introduction to the moons of Jupiter and the history of their discovery.
The smallest moon of …

One day the Sun will die. One day the Sun will “eat” planet Earth and life on Earth will stop. Is that scary? Oh yes it is, but do not worry. The sun will shine the next five billion years before it becomes the “Death Star”.
Nothing lasts forever, not even the sun. During …

We all know that the distances are big in the universe, but do we really know HOW big they are? We mentioned something about the scales of the Universe few days ago when we discussed about the possibility of an asteroid slamming into our planet.
It is hard to get a picture of the …

Have you ever thought what a jet stream could look like? You might quickly think that it is just a stream of air, you cannot see it. I have always thought like this until I found the picture on left side. It is borrowed from Nasa’s Earth From Space website. Isn’t it beautiful? …

Stars, right? What else? Almost all those tiny spots you see on nightsky are stars. How many stars can be seen without any equipment? Millions? No, around 1000-1500 in cities and around 3000 in countryside. There are so many stars above that a human being cannot just handle them all. Therefore the stars …

This post starts a new post series, namely “Objects Of Our Solar System”. The purpose of this series is to provide basic information of our solar system for those who are just starting skywatching and would like to understand better our solar system. First we will discuss about the Moon and in the …

Optical telescopes are used to create a picture of the objects in the space, but the problem with them is that they cannot “see” far. In order to see very far, such as billions of light years away from the Earth, we need other types of tools. Radiotelescopes provide us a possibility to …

Let’s talk about the two types of telescopes, namely refractors and reflectors. According to Wikipedia, “a telescope is an instrument designed for the observation of remote objects and the collection of electromagnetic radiation“. In fact this means that the purpose of telescopes is to gather light. The bigger the surface area of the …