Brightsurf Science News & Current Events

January 05, 2014
Yeast's lifestyle couples mating with meiosis
Mating and meiosis -- the specialized cell division that reduces the number of chromosomes in a cell -- are related, but in most yeasts they are regulated separately.

Mine landslide triggered quakes
Last year's gigantic landslide at a Utah copper mine probably was the biggest nonvolcanic slide in North America's modern history, and included two rock avalanches that happened 90 minutes apart and surprisingly triggered 16 small earthquakes, University of Utah scientists discovered.

Ground-breaking work sheds new light on volcanic activity
Factors determining the frequency and magnitude of volcanic phenomena have been uncovered by an international team of researchers.

After a 49-million-year hiatus, a cockroach reappears in North America
Four ancient cockroach species in the Ectobius genus were recently discovered in the 49-million-year-old Green River Formation near Rifle, Colo., and it now appears that Ectobius may have originated in the New World.

Pulsar in stellar triple system makes unique gravitational laboratory
The discovery of a millisecond pulsar -- a superdense neutron star -- in a triple system with two white dwarfs gives astronomers the most precise tool yet for studying the gravitational three-body problem.

Supervolcano eruptions are triggered by melt buoyancy
Until recently, how supervolcanos become active remained a mystery. Geologists from ETH Zurich have now used synchrotron X-rays to demonstrate that the pressure generated through the difference in density between magma and the surrounding rock alone can be sufficient to cause one of these geological giants to erupt.

Population stability 'hope' in species' response to climate change
Stable population trends are a prerequisite for species' range expansion, according to new research led by scientists at the University of York.

Newly discovered 3-star system to challenge Einstein's theory of General Relativity
A newly discovered system of two white dwarf stars and a superdense pulsar -- all packed within a space smaller than the Earth's orbit around the sun -- is enabling astronomers to probe a range of cosmic mysteries, including the very nature of gravity itself.
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