Methane (or ‘Natural Gas’) – the Other Major Greenhouse Gas — Information is Beautiful
Where does methane or 'natural gas' come from? Is it a greenhouse gas? How much methane do cows produce? All these questions answered, visually.
The Kessler syndrome (also called the Kessler effect, collisional cascading, or ablation cascade), proposed by the NASA scientist Donald J. Kessler in 1978, is a scenario in which the density of objects in low Earth orbit (LEO) is high enough that collisions between objects could cause a cascade in which each collision generates space debris that increases the likelihood of further collisions. One implication is that the distribution of debris in orbit could render space activities and the use of satellites in specific orbital ranges difficult for many generations.
Stuff in Space is a realtime 3D map of objects in Earth orbit, visualized using WebGL.