South Africa mother killed in “almost unheard of” second fatal great white shark attack in same area this year

A file photo shows Kimon Bisogno, a 39-year-old mother from Cape Town, South Africa, who was killed on September 25 by a great white shark off the popular beach of South Africa’s Plettenberg Bay. Kimon Bisogno/Facebook Johannesburg — A mother has been killed in the second deadly shark attack to hit the same popular tourist area … Read more

Undersea volcano eruption in Tonga was a “once-in-a-lifetime event” that could warm Earth’s surface, scientists say

When an undersea volcano erupted in Tonga in January, its watery blast was huge and unusual — and scientists are still trying to understand its impacts. The volcano, known as Hunga Tonga-Hunga Ha’apai, shot millions of tons of water vapor high up into the atmosphere, according to a study published Thursday in the journal Science. … Read more