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Posts by
EarthSky Voices
Magnetic pole reversal ahead?
What’s magnetic north would become magnetic south. Is Earth headed to a pole reversal? A look at the archaeological record in southern Africa provides clues.
February 10, 2017
Forensic science looks at human evolution
The reach of forensic science’s is being extended back from crime scenes into prehistory to help unlock the mysteries of human evolution.
January 14, 2017
Will I see the northern lights tonight?
Answers to commonly asked questions about seeing one of nature's wonders: the aurora borealis or northern lights.
January 4, 2017
Landing on Mars is hard
Mars' atmospheric pressure is less than 1% that of Earth, so spacecraft come down hard. Europe has been trying for a Mars' soft landing since 2003. How they plan to succeed.
December 6, 2016
The circadian rhythm of our microbes
Like most life on Earth, our gut microbes have their own circadian rhythm. Disrupting that daily routine can be bad - and keeping it in balance can be good - for whole body.
December 3, 2016
What’s the hottest Earth has ever been?
Earth’s hottest periods occurred before humans existed. Those ancient climates would have been like nothing our species has ever seen.
December 2, 2016
Signs of climate change at Arctic tree line
Near the Arctic Circle, in northern Alaska, is where forests give way to tundra. Researchers are looking at how the warming climate might affect the ecology of this northern boundary.
November 25, 2016
Climate change affecting all life on Earth
A new analysis of hundreds of studies says that almost every aspect of life on Earth has been affected by climate change ... and that's not good news for humans.
November 22, 2016
What happens if the sun disappears?
Some things that would happen here on Earth if our giant source of heat and light were to vanish from the sky, and how long it would take.
November 19, 2016
Team solves mystery of London killer fog
A fog blanketed London in December 1952, killing as many as 12,000 people. Its exact cause and nature puzzled researchers for decades … until now.
November 16, 2016
