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BBC News - Science & Environment

1. New diesel and petrol cars face 2040 ban in UK
   Ministers will unveil a £255m fund to help councils introduce steps to deal with vehicle pollution.
2. On a mission to Mars (with Hawaii stopover)
   Researchers living near the active Hawaiian Volcano Mauna Loa are simulating what it's like to "live" on Mars.
3. Astronaut shares 'burrito of awesomeness' aurora video
   Nasa's Jack Fischer gives his take on this aurora time-lapse from the International Space Station.
4. World's first floating offshore wind farm in Scotland.
   Each wind turbine is taller than Big Ben and the farm can power 20,000 homes.
5. Time, not material goods, 'raises happiness'
   Contentment comes from paying others to take on chores such as cleaning and cooking, a study says.