The most impressive pictures from the worlds of science and technology this week, from low-level aerial fire-fighting to a pair of hugging bears.
Blazing skies and moody twisters
Amazing air displays and breathtaking nature
Plane trails and tadpole stars
Volcanic plumes and home-made tanks
Foggy landings and robot tackles
Space suit test and peeking penguins
Ocean secrets and the dawn of the Universe
Sexy robots and an eerie whale
Aurora mission and frozen falls
Leopard escape and London time travel
Iced-up airliners and a violent Sun
Dancing F-16s and a view of the Universe
A rocket’s slow crawl and a spectacular volcano
A lion's check up and a brain sculpture
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