Several bird species are taking their final bows on the global evolutionary stage, and winking out. The situation in northeast Brazil is particularly dire.
An ice bridge collapsed at Perito Moreno Glacier in Argentina earlier this month. Hundreds of tourists and locals gathered to witness the dramatic event.
Solar eruptions from our sun are nothing compared to eruptions from some other stars - so-called 'superflares'. Two scientists say our sun could also be a superflare star.
After last summer's Pluto flyby, the New Horizons spacecraft started sending data to Earth – at 2 kilobits per second. What scientists have learned so far from that rich, slow cache.
Is there a 9th planet - a super-Earth - as yet undiscovered in our solar system? Researchers present an alternative view, not a planet, but many small objects.
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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