Picturing the future can be fascinating. An exhibition on the development of science fiction in Germany at a Bonn museum traces this fascination. Here are some of the highlights.
Since the start of the technological age, science fiction has acted as a reflection of the public's fascination with the future and inspiration for scientists to develop new technologies. An exhibition at the Haus der Geschichte (History Museum) in Bonn focuses on how science fiction has developed in Germany. In some ways, the exhibition is a time capsule.
Lost in space
The film "Raumschiff Venus antwortet nicht" ("Venus spaceship doesn't answer") was the name for the West German release of the GDR movie "Der schweigende Stern" ("The Silent Star"). A co-production of the GDR and Poland, the film came out in 1960 - a year after the Russian Luna mission successfully sent an unmanned spacecraft to the moon.
Diaries written by the famed German explorer Alexander von Humboldt as he toured central and southern America 200 years ago are to be sold by his descendants. Germany's Prussian Cultural Heritage Foundation is the buyer.
A German team has developed a way to give LEDs, which shed bluish or cold light, a warm tone. It could revolutionize highly efficient LEDs - and it's gained them a science prize nomination.
When it comes to pulling together globally in battling climate change, some small island nations have to fight to get their voices heard. Many of them have been wrestling with the effects of climate change for years.
Almost a third of the CO2 we emit is absorbed by the oceans. That helps to reduce global warming, but it also makes the oceans more acidic - posing a serious threat to marine life.