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SPACE & SCIENCE NEWS: February 2005
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Newest Saturn moons given names Feb 28, 2005
Space yacht rides to stars on rays of sunlight Feb 27, 2005
Ice age bacteria brought back to life Feb 26, 2005
Frozen sea on Mars linked to elevated methane Feb 25, 2005
Martian pole reveals ice age cycles Feb 25, 2005
Quark soup may cause cosmic flashes Feb 25, 2005
Astronomers find star-less galaxy Feb 24, 2005
Ancient life thrives in the deep Feb 24, 2005
Huygens detects geological activity on Titan Feb 23, 2005
Fast-spinning star could test gravitational waves Feb 22, 2005
Mars pictures reveal frozen sea Feb 21, 2005
Spying on Enceladus Feb 21, 2005
Moon measurements might explain away dark energy Feb 20, 2005
Mars Express scuppers greenhouse hopes Feb 19, 2005
Brain-controlled 'robo-arm' hope Feb 19, 2005
NASA sets May shuttle launch date Feb 19, 2005
Huge 'star-quake' rocks Milky Way Feb 18, 2005
Rover investigates deep-set rock Feb 18, 2005
Earth creates powerful gamma-ray flashes Feb 18, 2005
Martian water clues go wider and deeper Feb 18, 2005
Star Trek fans fight to save show Feb 18, 2005
Radar details large Titan crater Feb 18, 2005
Black holes bend light the 'wrong' way Feb 17, 2005
Age of ancient humans reassessed Feb 17, 2005
Space tether to send satellites soaring Feb 16, 2005
Key to intelligence questioned Feb 15, 2005
Smallest extra-solar planet found Feb 14, 2005
Saturn's moon is Death Star's twin Feb 14, 2005
Europe's super-rocket rides high Feb 14, 2005
Expectations ride on super-rocket Feb 12, 2005
Fledgling 'space federation' fears over-regulation Feb 11, 2005
Titan winds pummelled Huygens Feb 10, 2005
Did stardust trigger snowball Earth? Feb 10, 2005
Hot shot of Saturn's 'hot spot' Feb 10, 2005
First stellar outcast discovered by astronomers Feb 9, 2005
Carbon-rich planets may boast diamond interiors Feb 9, 2005
Astronomers discover beginnings of 'mini' solar system Feb 8, 2005
NASA plans to bring down Hubble Feb 8, 2005
Mars Express 'divining rod' to deploy Feb 7, 2005
Greenhouse gases could breathe life into Mars Feb 6, 2005
Life flourishes at crushing depth Feb 5, 2005
Underground search for 'God particle' Feb 4, 2005
Countdown to shuttle return flight Feb 3, 2005
Birds rise in intellectual pecking order Feb 1, 2005


new moon of Saturn
Newest Saturn moons given names
(Feb 28, 2005)


Three new moons discovered around Saturn by the Cassini spacecraft have been given provisional names. The discoveries were made last year, not long after Cassini had arrived in orbit around the ringed planet. Two moons detected in August have been given the names Methone and Pallene, while another found in October has been provisionally named Polydeuces. Three more candidate objects are still awaiting confirmation as moons.

Read more. Source: BBC

Cosmos 1
Space yacht rides to stars on rays of sunlight
(Feb 27, 2005)


A spacecraft that flies on sunbeams is about to begin its travels across the solar system. A group of American and Russian scientists are preparing to launch a probe with giant, wafer-thin plastic sails that can catch sunlight just as a yacht's sails fill with wind. Cosmos-1 has been designed to tack across space without using rockets and could form the forerunner of a network of solar observatories that would hover over the sun to provide early warnings of disruptive magnetic storms, or deliver instruments to remote space stations and planetary exploration teams.

Read more. Source: Independent

woolly mammoth
Ice age bacteria brought back to life
(Feb 26, 2005)


A bacterium that sat dormant in a frozen pond in Alaska for 32,000 years has been revived by NASA scientists. Once scientists thawed the ice, the previously undiscovered bacteria started swimming around on the microscope slide. The researchers say it is the first new species of microbe found alive in ancient ice. Now named Carnobacterium pleistocenium, it is thought to have lived in the Pleistocene epoch, a time when woolly mammoths still roamed the Earth. NASA astrobiologist Richard Hoover, who led the team, said the find bolsters the case for finding life elsewhere in the universe, particularly given this week's news of frozen lakes just beneath the surface of equatorial Mars.

Read more. Source: New Scientist

Mars Elysium
Frozen sea on Mars linked to elevated methane
(Feb 25, 2005)


The discovery of a frozen sea on Mars has ignited a new debate on whether life existed on the Red Planet. Most intriguing is the claim that the atmosphere above the frozen ocean in the Elysium Planitia region may have elevated concentrations of methane. If true, it could suggest that primitive micro-organisms might even survive on Mars today, according to Jan-Peter Muller, at University College London, and one of the team that found the frozen sea. The team, which was led by John Murray at the Open University, UK, analysed images taken by Europe's Mars Express spacecraft. "If the ice is still there, then Elysium is the most likely place to find past or present life on Mars," says Murray. He presented the findings at the 1st Mars Express Science Conference in Noordwijk, the Netherlands, on Monday. Immediately after his talk, Vittorio Formisano, chief scientist for Mars Express's Planetary Fourier Spectrometer (PFS) which measures the composition of gases in the planet's atmosphere, commented: "Elysium Planitia is indeed the region where we have seen the maximum of methane coming out of the surface."

Read more. Source: New Scientist

north polar cap of Mars
Martian pole reveals ice age cycles
(Feb 25, 2005)


Pictures of Mars's north pole have revealed a record of the planet's climate over the past 3 million years. The climate history is written in light and dark bands exposed on the sides of ice cliffs. Scientists now say that they can read these bands in the same way as climatologists on Earth interpret cores drilled from deep-sea sediments. Sarah Milkovich and James Head, geologists from Brown University in Rhode Island, used a series of images from the Mars Orbiter Camera on board NASA's Mars Global Surveyor craft.

Read more. Source: Nature

quark star
Quark soup may cause cosmic flashes
(Feb 25, 2005)


Intense flashes of gamma rays in far-off galaxies might be produced by a bizarre kind of star, consisting of phenomenally dense material in which the particles that make up atomic nuclei have fallen apart. Two astrophysicists have proposed that gamma-ray bursts, whose origins have foxed astronomers for decades, might be the signatures of elusive 'quark stars'. Scientists have speculated that these stars might exist, but have never seen convincing evidence for them. (Image: putative quark star RX J185635-375)

Read more. Source: Nature

dark matter galaxy
Astronomers find star-less galaxy
(Feb 24, 2005)


Astronomers have discovered an object that appears to be an invisible galaxy made almost entirely of dark matter. The team, led by Cardiff University, UK, claims it is the first such object to be detected. A dark galaxy is an area in the Universe containing a large amount of mass that rotates like a galaxy, but contains no stars. It was found 50 million light-years away using radio telescopes in England and Puerto Rico.

Read more. Source: BBC

life in deep sea sediments
Ancient life thrives in the deep
(Feb 24, 2005)


Our planet's murky deep sea sediments are a buzzing hotbed of life, according to a report in Nature magazine. Scientists suggest between 60 to 70% of all bacteria live deep beneath the surface of the Earth, far from the Sun's life-giving rays. Some of the new bacteria identified are about 16 million years old, surviving 400 metres below the sea bed. This hostile habitat might be where life first evolved more than 3.8 billion years ago, researchers believe.

Read more. Source: BBC

Titan
Huygens detects geological activity on Titan
(Feb 23, 2005)


The Huygens probe that roared through Titan's atmosphere has provided the strongest evidence yet to suggest Saturn's giant moon is geologically active beneath its icy surface. The ratio of carbon isotopes 12C and 13C in Titan's atmosphere, measured by the probe's Gas Chromatograph and Mass Spectrometer (GCMS) instrument, indicates that methane is being replenished on the freezing world. Continuing geological activity beneath the surface is thought to be the most likely source. The Cassini-Huygens mission has already produced remarkable insight into the enigmatic and inhospitable moon, which is unique among the planetary satellites in our solar system in having its own atmosphere.

Read more. Source: New Scientist

INTEGRAL
Fast-spinning star could test gravitational waves
(Feb 22, 2005)


One of the fastest-spinning stars ever seen has been found by the INTEGRAL spacecraft. But researchers say the star's speed could be limited by gravitational wave radiation – theoretical ripples in space-time. The idea could be tested by upgraded detectors within the next few years. The European Space Agency's INTEGRAL spacecraft, launched in 2002 to study high-energy phenomena in space, detected the star on 2 December 2004. Called IGR J00291+5934, the object appears to lie about 9800 light years away and emits a periodic signal every 1.7 milliseconds. That is the telltale signature of a type of neutron star called a "millisecond pulsar" – one that spins at least 100 times per second.

Read more. Source: New Scientist

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