SF gets a new world-building scenario
A microbe has been discovered in a remote Californian lake that can survive without phosphorus, capable of substituting arsenic into that slot in its biochemistry instead.
The shadow biosphere
One of the great unanswered questions of our age is whether, amongst the 70 sextillion stars, this little rock of ours is the only one with life (and intelligent life) on it. Amid the rough and tumble of wars, economic [...]




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