Primordial dry ice fuels comet jets
One of the biggest comet findings coming out of the amazing images and data taken by the University of Maryland-led EPOXI mission as it zipped past comet Hartley 2 last week is that dry ice is the...
View ArticleWinds of change strike Mars, too
Mysterious dark sand dunes around Mars' northern polar cap are shifting with the seasons, as carbon dioxide gas changes form and sparks landscape-altering avalanches, said a study published Thursday.
View ArticleDry ice lake suggests Mars once had a 'Dust Bowl' (Update)
(PhysOrg.com) -- NASA's Mars Reconnaissance Orbiter has discovered the total amount of atmosphere on Mars changes dramatically as the tilt of the planet's axis varies. This process can affect the...
View ArticleLatest EPOXI findings on Comet Hartley 2 published
Comet Hartley 2, is in a hyperactive class of its own compared to other comets visited by spacecraft, says a University of Maryland-led study published in the June 17 issue of the journal Science.
View ArticleScientists find simple way to produce graphene
(PhysOrg.com) -- Scientists at Northern Illinois University say they have discovered a simple method for producing high yields of graphene, a highly touted carbon nanostructure that some believe could...
View ArticleAre gas-formed gullies the norm on Mars?
In June 2000, Martian imaging scientists made a striking discovery data from NASAs Mars Global Surveyor spacecraft found gullies on the red planet. Gullies on Earth form when water runs down steep...
View ArticleResearchers find simple and cheap way to mass-produce graphene nanosheets
Mixing a little dry ice and a simple industrial process cheaply mass-produces high-quality graphene nanosheets, researchers in South Korea and Case Western Reserve University report.
View ArticleNASA observations point to 'dry ice' snowfall on Mars
(Phys.org)—NASA's Mars Reconnaissance Orbiter data have given scientists the clearest evidence yet of carbon-dioxide snowfalls on Mars. This reveals the only known example of carbon-dioxide snow...
View Article'Spiders' on Mars
Eek, spiders! All right, so it's not actually little green arachnids we're talking about here, but they are definitely spidery features. Called araneiform terrain, these clusters of radially-branching...
View ArticleObserved changes to Martian surface caused by seasonal thawing of carbon...
(Phys.org)—Spring is a dynamic season on the dunes surrounding Mars' north pole. When frozen carbon dioxide, or dry ice, deposited as a winter ice cap on Mars sublimates – changes directly from a solid...
View ArticleHubble brings faraway comet into view
(Phys.org) —The NASA Hubble Space Telescope has given astronomers their clearest view yet of Comet ISON, a newly-discovered sun grazer comet that may light up the sky later this year, or come so close...
View ArticleMarks on Martian dunes may be tracks of dry-ice sleds
(Phys.org) —NASA research indicates hunks of frozen carbon dioxide—dry ice—may glide down some Martian sand dunes on cushions of gas similar to miniature hovercraft, plowing furrows as they go.
View ArticleNew material could help with carbon storage
New research led by University of Nebraska-Lincoln chemist Xiao Cheng Zeng has led to the discovery of a new material that could have significant implications for a variety of challenges, from carbon...
View ArticleImage: Martian sand dunes in spring
(Phys.org) —Mars' northern-most sand dunes are beginning to emerge from their winter cover of seasonal carbon dioxide (dry) ice. Dark, bare south-facing slopes are soaking up the warmth of the sun.
View ArticleIce core reveals unusual decline in eastern Australian rainfall
Researchers from the ACE CRC and the Australian Antarctic Division have found evidence from ice cores of a long term decline in average annual rainfall in eastern Australia, with records revealing that...
View ArticleAncient Indonesian climate shift linked to glacial cycle
Using sediments from a remote lake, researchers from Brown University have assembled a 60,000-year record of rainfall in central Indonesia. The analysis reveals important new details about the climate...
View ArticleDoctoral student explores formation of martian gullies
The gullies of Mars have fascinated scientists since they were first identified through high-definition images transmitted to Earth by the Mars Global Surveyor in the late 1990s.
View ArticleBreakthrough in energy harvesting could power life on Mars
Martian colonists could use an innovative new technique to harvest energy from carbon dioxide thanks to research pioneered at Northumbria University, Newcastle.
View ArticleChina officials 'delayed shipment' of author's frozen body
A US firm has blamed Chinese "government bureaucracy" for delays in shipping the frozen body of a science fiction editor out of the country in the hope that she might later be revived.
View ArticleFarming water on Mars
Mars is a different place than Earth. There is water on Mars, more than the Moon, but lots less than on our own world. But the water on Mars is the same H2O we have here, and we should use it when we...
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