Tagged: solar system

Artist impression of the interior of a giant hollow asteroid, seen from the shore of a lake, with two men on a wooden pier, looking out towards a city and the hills, lakes and cliffs beyond

Psyche Station: living in an asteroid

Some people use Facebook to watch cat videos or to read fake news. I use this medium for completely different things. A few weeks ago, my attention was triggered by a sketch my Facebook friend Shaun Moss posted. A simple drawing of a fairly extensive project: the excavation of asteroid 16 Psyche for the establishment of a space colony. The blue lines indicate a huge cylindrical space (the distances are in meters). Rotating the big rock around its central axis creates a centrifugal force on the curved walls of the cylinder. That force feels like gravity, like in a spinning washing...

The Forest Planetarium of Arnhem: eight stainless steel spheres in the Cold Pond in Sonsbeek Park

The Arnhem Forest Planetarium and the Lost Planets

A few years ago I had a brilliant idea: a model of the solar system on the scale of the municipality of Rotterdam. Just because it’s important to see the bigger picture, to know which larger system we’re a part of. And because it’s fun to be amazed about how big everything is. And how small we are ourselves. Streetplanetarium The city of Rotterdam is a very suitable place for such a streetpanetarium because there is a long trail of port areas attached to the city. Therefore, the distance between the center and the extreme outer regions is so large...

The names of all bodies in the Solar System larger than 100 kilometres, with font sizes relative to their radius, based on the realistic colors of the objects against the black background of space

87 Members of the Solar Family

A while ago I made a family portrait of the solar system. Or rather a portrait of the leading members of the family, the eight planets: Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars and Mercury. Moons, asteroids and dwarf planets But there’s more happening around the Sun. Moons for instance; our own Moon, of course, but also a large number of satellites of the four gas giants. There is an asteroid belt between the orbits of Mars and Jupiter where, besides a lot of little ones, also bigger objects are turning their rounds. But many asteroids can be found outside...

Group portrait of the eight planets of our solar system, shown to scale: Earth, Venus, Mars and Mercury in their entirety and parts of Jupiter, Saturn, Neptune and Uranus

Portrait of the Planets

When you want to capture the whole Solar System in one image, you come across a problem: the distances between the eight planets and their star are huge, almost unimaginable. In all the pictures of the solar system you’ve ever seen the sizes of the planets are wrong: they are strongly exaggerated, by necessity. On a scale model of about two metres – a nice size to hang on the wall in your living room – the Earth would be only four thousandths of a millimeter. You wouldn’t even be able to see our homeworld! Heaven on Earth The only...