It'll be the hottest year on record unless the final weeks of 2016 are the coldest of the 21st century so far, according to the World Meteorological Organization.
A week ago, a test crew emerged after living for a year in Mars-like conditions inside a solar-powered dome on the slopes of Hawaii’s Mauna Loa volcano.
For 90 years, science’s favorite explanation for the origin of life has been the “primordial soup”. But recent research adds weight to an alternative idea.
Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them.
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