UPIMon, 09 Jul 2007 22:59 UTC
The National Aeronautics and Space Administration has discovered evidence of hydrocarbons on Saturn's moon Hyperion, scientists said Monday.
NASA said the Cassini spacecraft revealed, for the first time, surface details of Saturn's moon Hyperion that include cup-like craters filled with hydrocarbons. That discovery suggests a more widespread presence in our solar system of basic chemicals necessary for life, NASA scientists said.
Tariq Malik
SPACE.comSun, 08 Jul 2007 09:26 UTC
For the third time in two days, NASA postponed the launch of its asteroid-bound Dawn probe Saturday, with liftoff now slated for no earlier than September.
Its rock-hard surface can take a full-on assault from a baseball bat, yet remains flexible enough to allow you to kick, leap and roll with perfect ease. Crafted from cutting-edge science, its unique molecular structure means that while providing armoured protection against crude concrete and even barbed wire, it remains light enough to allow you to run at high speed.
It sounds like the stuff of Batman comics - but the superhero suit is here.
Comment: I'm sure the this new breakthrough will be used to advance humanity.
The search for life elsewhere in the solar system and beyond should include efforts to detect what scientists sometimes refer to as "weird" life -- that is, life with an alternative biochemistry to that of life on Earth -- says a new report from the National Research Council. The committee that wrote the report found that the fundamental requirements for life as we generally know it -- a liquid water biosolvent, carbon-based metabolism, molecular system capable of evolution, and the ability to exchange energy with the environment -- are not the only ways to support phenomena recognized as life. "Our investigation made clear that life is possible in forms different than those on Earth," said committee chair John Baross, professor of oceanography at the University of Washington, Seattle.
The report emphasizes that "no discovery that we can make in our exploration of the solar system would have greater impact on our view of our position in the cosmos, or be more inspiring, than the discovery of an alien life form, even a primitive one. At the same time, it is clear that nothing would be more tragic in the American exploration of space than to encounter alien life without recognizing it."
The tacit assumption that alien life would utilize the same biochemical architecture as life on Earth does means that scientists have artificially limited the scope of their thinking as to where extraterrestrial life might be found, the report says. The assumption that life requires water, for example, has limited thinking about likely habitats on Mars to those places where liquid water is thought to be present or have once flowed, such as the deep subsurface. However, according to the committee, liquids such as ammonia or formamide could also work as biosolvents -- liquids that dissolve substances within an organism -- albeit through a different biochemistry. The recent evidence that liquid water-ammonia mixtures may exist in the interior of Saturn's moon Titan suggests that increased priority be given to a follow-on mission to probe Titan, a locale the committee considers the solar system's most likely home for weird life.
After pondering the weighty question of the mass of the Milky Way galaxy, astronomers have come up with an answer: 42.
That is, our galaxy weighs three times 10 to the power of 42kg - a number written as 3 followed by 42 zeroes, which has echoes of author Douglas Adams's fictional answer to the question of life, the universe and everything in his series Hitchhiker's Guide to the Galaxy.
Comment: Note the very positive language used in the article - it is fairly authoritative in its presentation - "we have the answer". Yet at the same time it admits:
"scientists have only hunches about the nature of the invisible material that, along with "dark energy", they estimate makes up 96 per cent of the universe."
So, that amounts to a very hazy perception of the what constitutes the significant majority of reality. Perhaps it is more healthly for science to make clear all assumptions that are in use, and to admit that really we know almost nothing about anything.
A comet theory put forth by a group of 25 geo-scientists suggests that a massive comet exploded over Canada, possibly wiping out both beast and man around 12,900 years ago, and pushing the earth into another ice age.
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University of South Carolina archaeologist Dr. Albert Goodyear said the theory may not be such "out-of-this-world" thinking based on his study of ancient stone-tool artifacts he and his team have excavated from the Topper dig site in Allendale, as well as ones found in Georgia, North Carolina and Virginia.
WASHINGTON - Another stereotype - chatty gals and taciturn guys - bites the dust.
Turns out, when you actually count the words, there isn't much difference between the sexes when it comes to talking.
Researchers at the University of Southampton have developed a software package for modelling asteroid impacts that enables them to assess the potential human and economic consequences across the globe.
The software, called NEOimpactor, has been specifically developed for measuring the impact of 'small' asteroids under one kilometre in diameter, and early results indicate that the ten countries most at risk are China, Indonesia, India, Japan, the United States, the Philippines, Italy, the United Kingdom, Brazil and Nigeria.
Scientists and theologians from around the world are trying to solve the mystery of the incorruptible body of Hambo Lama Itigilov known as the "Buryat Nostradamus".
About 150 researchers and theologians from Europe, Mongolia and Russia are attending the first-ever international conference "Pandito Hambo Lama Itigilov" underway at the official residence of the Buddhist traditional church of Russia - the Ivolginsky Datsan -- near Ulan Ude.
Hambo Lama died in 1927 while meditating in lotus posture and praying for the repose of his soul. The body stayed in the ground for 75 years. In 2002, when the tomb was opened, Buddhist monks saw that the body of their teacher had not decayed.
A commercial satellite image appears to have captured China's new nuclear ballistic missile submarine. The new class, known as the Jin-class or Type 094, is expected to replace the unsuccessful Xia-class (Type 092) of a single boat built in the early 1980s.
The new submarine was photographed by the commercial Quickbird satellite in late 2006 and the image is freely available on the
Google Earth web site.
A Comparison of SSBN DimensionsTwo satellite images are now available (see figure below) that clearly show two missile submarines with different dimensions. One image from 2005 shows what is believed to be the Xia-class (Type 092) SSBN in drydock at the Jianggezhuang Submarine Base approximately 14 miles east of Qingdao. The submarine is approximately 390 feet (120 meters) long of which the missile compartment makes up roughly 80 feet (25 meters). Twelve missile launch tubes are clearly visible.
Comment: I'm sure the this new breakthrough will be used to advance humanity.