During a visit to Signy, researchers used a special

Wholesale Long Dress cheap corsets and bustiers During a visit to Signy, researchers used a special drill to remove a roughly 1-inch-wide and 4 1/2-foot-long core sample of moss and transported it to the
University of Reading for analysis.
Researchers radio-carbon dated moss shoots at the base of the sample and said they were found to be 1,533 to 1,697 years old. They also placed sections of
the core sample under growing lamps and misted them with water. Each showed new growth, but at very different rates, researchers said.
“The length of time required before growth became visible increased with depth,” authors wrote. After 27 days, growth was visible at more than three inches
of depth; after 40 days, growth began around one foot of depth; and after 55 days, growth appeared around three feet of depth.
Surprisingly, however, growth at the very bottom of the core sample became visible after just 22 days, authors wrote.
“The potential clearly exists for much longer survival,” authors wrote.


New maps show Mercury even smaller
Detailed maps of Mercury's cliffs and ditches show the solar system's innermost and smallest planet Mercury has shrunk more due to cooling over four billion
years than scientists thought, according to a report published on Sunday.

Cooling of Mercury's massive iron core has pared about 14.5 kilometres from the planet's diameter, more than twice as much as previous estimates.

"When you look at the actual number, it's really pityingly small, compared to the size of a planet. But it doesn't need to change very much to have some
effect," said planetary scientist Paul Byrne, with the Carnegie Institution's Department of Terrestrial Magnetism.

Scientists studied more than 5900 surface features, including cliff-like scarps and wrinkle ridges, to calculate how much Mercury has condensed.

Unlike Earth, which as several plates of crust, Mercury has just one rigid, rocky layer which bears telltale cliffs and chasms caused by global contraction.