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New planet or evicted imposter?
An object said be a new planet on the fringes of the solar system isn't a true planet but probably an alien interloper from a distant star, says an expert on solar system formation. 
Nuclear dump site gets thumbs down
A radioactive leak at one of the sites short-listed as a nuclear waste dump in Australia's Northern Territory could contaminate drinking water, says a hydro-geologist familiar with the area.
Desalination: taking the plunge
Australia will get the world's largest desalination plant of its kind if the drought doesn't release its stranglehold on the eastern state of New South Wales.
Top scientist 'should look beyond widgets'
Australia's new chief scientist should be someone who is not so focused on the production of patentable widgets from science, says a key science body.
Ghosts of past haunt new gene project
A new privately funded project to use DNA to map the migration routes of ancient humans could face a big task in convincing some indigenous people that releasing their genetic material is in their best interest.
Don't panic! Asteroid may be a wimp
Astronomers are hoping to reduce the chance of undue public panic over the prospect of space rocks slamming into the Earth.
NASA plans for shuttle retirement
The US space agency's future success depends, in part, on how well it plans for the phase-out of the space shuttle over the next five years without sacrificing expertise and critical industrial suppliers needed for future endeavours, say experts at NASA's annual space operations summit.
Scientist argues case for life on Mars
A theory from a European Space Agency scientist, that methane-producing microbes are alive on Mars, is about to get its first airing in a scientific forum.
Public shares nanotech fears
CSIRO needs to be more open about multimillion dollar developments like nanotechnology, and do a better job at including the public in setting its research agenda, a new report has found.
Nanotech risk put on insurance agenda
Nanotechnology presents new challenges for insurance companies, according to a new report that calls on the industry to get to grips with assessing the risks of this new technology.
Faster electronics ahead, says new theory
A new theory on how electrons behave in ultra small devices threatens to overturn one of the tenets of quantum electronics, an international team of researchers says.
Buddhism at one with stem cell research
Human cloning and Buddhism are words not often used in the same sentence.
Gene tests: too unreliable for insurance?
The use of genetic tests by insurance companies has been sanctioned by an Australian government inquiry - despite widespread belief among genetics experts that the science behind the tests is too uncertain.
