Last updated on Saturday 31st January 2015 10:05:01 GMT
- Controllers banking on Philae wake-up
The European Space Agency says it will conduct no more dedicated searches for its lost comet lander, and will now wait for the probe itself to call home.
- Study fells cosmic inflation claim
Scientists who claimed to have found evidence for a cosmic super-expansion at the Big Bang made no such discovery, a soon-to-be published study will say.
- 'Cold plasma' kills off norovirus
Norovirus, the most common cause of gastroenteritis in the world, can be killed with "cold plasma", scientists report.
- Scars reveal ageing whales' secrets
Scientists studying one of the most mysterious whale species find they form long-term alliances, sometimes lasting many years.
- Chicks place low numbers on the left
Scientists in Italy find that baby chickens associate low and high numbers with left and right, respectively - suggesting they may count using a "mental number line" like humans do.
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