Spectroscopic data on alkali-atom dimers residing on the surface of liquid helium nanodroplets have revealed that they are detected primarily in the weakly bound, metastable, spin-triplet state. Here, ...

The visibility of the Northern Lights changes, but a clue is in the word ‘Northern’. Predominantly the northern lights are best witnessed in Scotland, North England, North Wales and Northern Ireland.

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Joining him are a trio of other polar exploration enthusiasts: Norwegian film director Jannicke Mikkelsen, Germany-based robotics researcher Rabea Rogge and Australian adventurer Eric Philips.

Joining him are a trio of other polar exploration enthusiasts: Norwegian film director Jannicke Mikkelsen, Germany-based robotics researcher Rabea Rogge and Australian adventurer Eric Philips. After ...