Australian-led astronomers find the most iron-poor star in the Galaxy, hinting at the nature of the first stars in the Universe.
A newly discovered ancient star containing a record-low amount of iron carries evidence of a class of even older stars, long hypothesised but assumed to have vanished.
In a paper published in the journal Monthly Notices of
the Royal Astronomical Society: Letters, researchers led by Dr Thomas
Nordlander of the ARC Centre of Excellence for All Sky Astrophysics in 3
Dimensions (ASTRO 3D) confirm the existence of an ultra-metal-poor red
giant star, located in the halo of the Milky Way, on the other side of the
Galaxy about 35,000 light-years from Earth.
A passenger jet could one day fly halfway around the world
in just a few hours. That’s the goal of the High-speed Experimental Fly project
(HEXAFLY): going beyond the supersonic realm pioneered by the now-defunct
Concorde to reach hypersonic speeds more than five times as fast as sound.
The Copernicus Earth-observation program delivers a steady stream of
information about how the planet changes from day to day.
Run by the European Commission and the European Space
Agency, Copernicus uses satellites called Sentinels that continuously monitor
Earth from space and tools on the ground for calibration and cross-checking.
Discovering our changing planet: a perfect France–Australia partnership
Professor Kurt Lambeck is one of Australia’s most eminent scientists—a geophysicist who revealed how the Earth changes shape and how these changes are tied to sea levels, the movement of continents, and the orbits of satellites. Vital to his career have been French collaborations that now span almost half a century.
Changing how communities think about water in Oceania
Water is a fundamental necessity of life, and managing water—who uses it and how—is a key challenge in developing countries.
Decisions about how to use scarce freshwater for drinking, agriculture, industry, and the environment can lead to conflict. In Oceania, this is often complicated by questions of who should make the decisions—governments, landholders, industry or others.
A passenger jet could one day fly halfway around the world in just a few hours. That’s the goal of the HEXAFLY project (High-speed Experimental FLY): going beyond the supersonic realm pioneered by the now-defunct Concorde to reach hypersonic speeds more than five times as fast as sound.
Led by the European Space Agency, the project has now brought on international collaborators to prepare for an early stage test flight planned for 2020.
Correction: an earlier version stated the tool is being formally trialed by the NSW Rural Fire Service. It is currently in use, but formal trials ended in 2016.
Firestorms are a nightmare for emergency services and anyone in their path. They occur when a bushfire meets a ‘perfect storm’ of environmental conditions and creates a thunderstorm.
Dr Rachel Badlan and Associate Professor Jason Sharples are part of a team of experts from UNSW Canberra and ACT Emergency Services that has found the shape of a fire is an important factor in whether it will turn into a firestorm.
Fires that form expansive areas of active flame, rather than spreading as a relatively thin fire-front, are more likely to produce higher smoke plumes and turn into firestorms, the researchers found.
This finding is being used to underpin further development of a predictive model for firestorms. The model was trialed in the 2015 and 2016 fire seasons by the ACT Emergency Services Agency and the NSW Rural Fire Service, and now forms part of the national dialogue around extreme bushfire development.
Perth researchers help Chevron keep oil and gas flowing smoothly
Out in the Gulf of Mexico Chevron are operating a $7.5 billion platform that’s recovering oil and gas from two-kilometre-deep ocean.
It’s the largest and deepest operation in the Gulf, with over 146km of pipeline bringing oil and gas to refineries.
But pipelines operating at extreme depths in cold water and crushing pressure are prone to blockage. University of Western Australia researchers are helping Chevron keep oil and gas flowing through deep-water pipes.