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In this image made from video provided by NASA, NASA astronauts Christina Koch and Andrew Morgan work outside the International Space Station, Sunday, Oct. 6 2019.  The astronauts kicked off the first of five spacewalks to replace old batteries at the International Space Station on Sunday. (NASA via AP)

Going where robots can’t

Astronauts have hustled through the first of five spacewalks to replace old batteries at the International Space Station.

The Times
A bee collects pollen from a sunflower in Idaho Falls, Idaho, Monday, Sept. 9, 2019. (John Roark/The Idaho Post-Register via AP)

How sunflowers work

Sunflowers have demonstrated the kind of collaborative behaviour once believed to be restricted to the animal kingdom.

Original URL: https://www.theaustralian.com.au/science/page/104