On this day:
King Louis IX of France orders all Jews found in public without an identifying yellow badge to be fined ten livres of silver.
1306
The Earl of Pembroke’s army defeats Bruce’s Scottish army at the Battle of Methven.
1586
English colonists leave Roanoke Island, after failing to establish England’s first permanent settlement in North America.
1846
The first officially recorded, organized baseball match is played under Alexander Cartwright’s rules on Hoboken, New Jersey’s Elysian Fields with the New York Base Ball Club defeating the Knickerbockers 23-1. Cartwright umpired.
1953
Julius and Ethel Rosenberg are executed at Sing Sing, in New York.
1964
The Civil Rights Act of 1964 is approved after surviving an 83-day filibuster in the United States Senate.
1982
The body of God’s Banker, Roberto Calvi is found hanging beneath Blackfriars Bridge in London.
Lake Vostok sits beneath the East Antarctic Ice Sheet at roughly 78 degrees south, almost exactly under the geomagnetic south pole. The surface station above it, founded in 1957, is the same place that recorded the coldest natural temperature ever measured on Earth: minus 89.2 degrees Celsius in July 1983.
The lake itself, though, is liquid. Heat from the Earth’s interior, combined with the immense pressure of the ice above, keeps the water in a slim, dark, freshwater layer between bedrock and glacier. Estimates of its isolation vary, but the last contact with the atmosphere occurred around 15 million years ago, when Antarctica’s ice sheet thickened into the form it holds today.
To put that in perspective: when Vostok was last open to the sky, the ancestors of modern humans had not yet diverged from the ancestors of chimpanzees.
Any microbes living in Vostok would have spent millions of generations adapting to a place with no light, no fresh nutrients from above, and extreme water pressures. Ice cores trapped bubbles of ancient air from four glacial cycles, making them one of the most-cited paleoclimate archives in science.
On 5 February 2012, at a depth of 3,769.3 metres, a drill broke into the lake.
DNA sequencing revealed more than 3,500 unique gene sequences, the majority bacterial, but including fungi and traces consistent with multicellular eukaryotes. Some matched microbes known from deep-sea hydrothermal systems. Others matched nothing in any database. Another subglacial lake, Lake Whillans, sampled cleanly by an American team in 2013 using hot-water drilling, came back full of living microbes that metabolised iron and sulfur compounds from ground-up bedrock. Iron and sulfur!
Life, in other words, had found a way to make a living in total darkness, drawing energy from rocks instead of sunlight.
Vostok draws planetary scientists as much as it draws glaciologists is that it is the closest analogue Earth offers to two of the most promising places in the solar system to look for life: Jupiter’s moon Europa and Saturn’s moon Enceladus. Both worlds hide global oceans beneath thick ice shells. Both are dark, cold, and chemically active at the rock-water boundary.
A microbe that can survive 15 million years of darkness in Vostok is a working proof that biology does not require sunlight or fresh organic matter from above to persist.
A record of evolution running in a closed room for longer than the Mediterranean Sea has existed. A lineage of organisms that never saw the sun set on the dinosaurs because they were already underground when the dinosaurs were still around. A small dark ocean that survived the rise of the Himalayas, the drying of the Sahara, and the entire human story, and was only opened, briefly, by a drill bit from a station built on top of it by accident. --(from Space Daily of all places)