21. Novmeber 2013
The rings of Saturn have puzzled astronomers since Galileo Galilei discovered them with his telescope in 1610. Detailed study by the Voyager 1 and Voyager 2 spacecraft in the 1980s only increased the mystery.
There are billions of ring particles in the entire ring system. The ring particle sizes range from tiny, dust-sized icy grains to a few particles as large as mountains. Two tiny moons orbit in gaps (Encke and Keeler gaps) in the rings and keep the gaps open. Other particles (10s to 100s of meters) are too tiny to see, but create propeller-shaped objects in the rings that let us know they are there. The rings are believed to be pieces of comets, asteroids or shattered moons that broke up before they reached the planet. Each ring orbits at a different speed around the planet. Information from NASA’s Cassini mission will help reveal how they formed, how they maintain their orbit and, above all, why they are there in the first place.
Image Credit: NASA/JPL/Space Science Institute
(Source: ivanrobles / allerdings)
The three members of Tahribad-i Isyan — from left to right: Vaysi Ozdemir aka V.Z., Burak Kacar aka Zen-G, and Asil Koc aka Slang — met in high school and started rapping together at Sulukule Cocuk Sanat Atolyesi (Sulukule Children’s Art Center).
Sulukule, a Roma neighborhood where Asil also grew up, is one of Istanbul’s most notorious gentrification failures. Many of Tahribad-i Isyan’s lyrics deal with the forced displacement of Sulukule’s population, the new developments which remain empty, and the crumbling homes where some original residents still live or have moved back into.“Wonderland,” a video installation by Turkish artist Halil Altindere, featured in this year’s Istanbul Biennial, starred the group and got a lot of attention in the local and international press. They are left trying to negotiate their newfound fame. Will they succeed in their music? Help Sulukule and those who live there? Get jobs?Tuesday night I met Tahribad-i Isyan near Taksim square, where they were scheduled to appear on a late-night music radio show. I asked questions about Gezi and Sulukule and they answered, first in conversation and later in verse.— Pulitzer Center grantee Jenna Krajeski, who is in the field reporting about the lasting effects of protests in Turkey. Image by Jenna Krajeski via Instagram. Turkey, 2013.