Skip to main content

Satellites orbiting our planet


As data visualization has become more popular, bad infographics have started to crop up more and more frequently. Thankfully, we can always rely on Michael Paukner to make very, very good ones. Here he shows the satellites orbiting our planet.

Russia, as you might expect, has a whole lot of satellites that are no longer functioning. China is responsible for a surprisingly large amount of tiny space trash, though I'm not exactly clear on what that is. America, of course, is responsible for the largest amount of space trash.

Seeing how many broken satellites remain in orbit instantly reminded me of the scene in Wall-E in which the Earth of the future is seen enveloped in a layer of orbiting techno-trash. Let's hope it doesn't come to that.

Comments

Popular posts from this blog

768-bit RSA cracked, 1024-bit safe (for now)

With the increasing computing power available to even casual users, the security-conscious have had to move on to increasingly robust encryption, lest they find their information vulnerable to brute-force attacks. The latest milestone to fall is 768-bit RSA; in a paper posted on a cryptography preprint server, academic researchers have now announced that they factored one of these keys in early December. Most modern cryptography relies on single large numbers that are the product of two primes. If you know the numbers, it's relatively easy to encrypt and decrypt data; if you don't, finding the numbers by brute force is a big computational challenge. But this challenge gets easier every year as processor speed and efficiency increase, making "secure" a bit of a moving target. The paper describes how the process was done with commodity hardware, albeit lots of it. Their first step involved sieving, or identifying appropriate integers; that took the equivalent of 1,500 y...