In the Norwegian valley town of Rjukan, giant mirrors have been erected to reflect the sun into the town's main square, which is normally into darkness in October. The idea was first thought up a century ago.
Gravitational waves were first detected on Earth. But soon the search continues in space. This Tuesday the satellite LISA Pathfinder will be switched off. Her data will live on in a new experiment.
The official countdown to the Summer Games in Rio de Janeiro has begun with the lighting of the Olympic flame in Greece. This kicked off the torch relay leading up to the start of the Olympics in early August.
Rainbows aren't just pretty, they're also cool examples of science at work, a symbol for the LGBT movement and - as some believe - a bridge to the world of the Norse gods.
An Oslo firm have developed a laser gun which kills an out-of-control parasite threatening Norway's massive aquaculture industry.
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