The stones appeared at the Neolithic, or New Stone Age, site of Vasagård approximately 4,900 years ago, at around the same time as a devastating volcanic winter in Northern Europe. The objects may ...

This eruption likely caused a "volcanic winter," with diminished sunlight and cooling temperatures. Dendrochronological data from fossil wood further confirm frost damage during spring and summer in ...

Neolithic people buried hundreds of stones carved with images of the sun about 4900 years ago and they may have done it because a volcanic eruption covered the sky ...

These eruptions likely cast a volcanic winter over the northern hemisphere, impacting the trees at Mount Iškoras in Norway, where the study was conducted. "Blue rings look like unfinished growth ...

Letchworth isn’t the only place to witness this rare winter phenomenon. Along the frozen shores of Lake Ontario, water pushes up through the cracks in the ice, bursting towards the sky like lava and ...

Scientists have also been concerned about severe winter weather across the region ... And the popular tourist destination ...