Space
Killer asteroid: Too close for comfort
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Issue 2505
"The polluter pays" is the environmental mantra that will soon be enshrined in an extension to the treaty that governs Antarctica
We are heading for the closest-ever near miss by a speeding asteroid. And when it comes around again we might not be so lucky
Is life a freak of chemistry unique to Earth? Is life inevitable? Could it survive interplanetary travel? Paul Davies reviews an impressive round-up of the field