More than dirty snowballs?

31 July 2015 Premium content

Comets are thought to represent leftover building blocks of the solar system; Jennifer Newton finds more questions than answers

Made to measure

23 July 2015 Premium content

Emma Stoye investigates how instruments for space exploration are built and how the technology brings benefits down to Earth

Chasing stardust

20 July 2015 Premium content

Molecules in deep space are very small and very far away, as Matthew Gunther discovers

Chemical life support

10 July 2015 Premium content

Keeping astronauts alive requires some clever chemistry, as Katharine Sanderson discovers


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