Venus transits the sun

Today is Sun-Earth day. Venus transits the sun. And while our friends over at The Universe (https://www.facebook.com/AstrophysicsAndAstronomy) already reported about that, maybe some of you like it as well. NASA is having a live webcast right now over at: http://venustransit.nasa.gov/transitofvenus/ They’re talking about the relationship to planetary and earth science too. Worth a try! Don’t […]

The weekend volcano post

The weekend is coming! Let’s start this weekend with an awesome volcano picture of the Bagana in Papua New Guinea. It was taken by the Earth Observing-1 satellite and is a rather rare picture. This volcano can hardly be monitored since it’s located far from any civilization. Enjoy it and study the different magma flows […]

Fresh water consumption

Fresh water is an increasingly scarce but important resource. Have a look at this great illustration, where the water of the world goes and how it is consumed. In many places water consumption is depending on population size. But a great deal goes into food production. Did you know that India exports a big deal […]

The “Missing Silicon”-Problem

For quite some time, we have been missing some silicon. I guess, this need some explanation. Scientists have a quite good understand of which elements should be on this earth. They derived this information from meteorites and some theoretical constructs on how earth formed from the solar nebula. But as it’s often the case: Earth […]

Interdisciplinary Upwelling

Have a look at the map. It shows the worldwide upwelling areas (by NCEP and NOAA). Upwelling in coastal areas has been known for quite a while. However, this is a beautiful example how different systems of the earth interact and make living possible. Upwelling is a very important nutrient provider, transporting low, cold, nutrientrich […]

Under a raging moon.

On the 5th of may several spectacular moments combined to the beautiful picture taken by @etnaboris (Twitter / Flickr). We had the “supermoon”. This just means that two phenomenae joined, making the moon appear bigger than usual. The moon is on a slightly elliptical path around earth. Now what happened is that full moon and […]