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An expedition has been launched that will spend the next two months studying the continent of Zealandia, a mostly-submerged land mass that was officially classified as a continent earlier this year. Stretching from the island of New Caledonia in the north to Campbell Island in the south, 95 percent of Zealandia lies under the ocean, with the island of New Zealand making up the largest portion of the continent’s dry land area.
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A new equation has been published that has the potential to settle the debate of how big an impact human activity has had on the environment, in comparison to natural forces. This equation, created by the authors that proposed that we’re living in a new geological epoch called the Anthropocene, is meant to offer a mathematical formalization of our everyday discourse regarding global warming — putting hard numbers to what can oftentimes devolve into a nebulous argument — and the result of the equation is alarming.
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A small asteroid passed extremely close to the Earth on January 9, missing us by only 192,500 kilometers (119,500 miles), roughly half the distance between the Earth and the Moon. Because of its small size, the asteroid, called 2017 AG13, wasn’t spotted until two days before its approach.
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