The open-source photo editing application Gimp might be a replacement for Photoshop, but I suspect that most Photoshop users who try to migrate will be less than delighted with the results. In Short Circuits: Last month's largest-ever distributed denial of service attack was followed this month by one that was even larger. The underlying problem is massive. IBM and Airbus have cooperated to build a basketball-sized robot that will soon fly to the international space station. In Spare Parts (only on the website): A study suggests that an artificial intelligence system does a better job than lawyers do in reviewing some kinds of contracts • Equifax says that it will be notifying another 2.4 million US consumers that last year's data breach exposed some of their information. • If you have a clever idea, you might want to enter it in the annual Create the Future contest. Top prize is $20,000.