Where do the hydrogen and oxygen that make up the earth’s water come from?
A recent study shows that the Earth's water could come directly from the oxygen and hydrogen present in the rocks that formed it, and not from a late supply by asteroids.
Hydrogen gas was banned for use in airships based on misinformation and outright falsehoods 100 years ago.
Hydrogen-filled cargo airships could do for the Northern economy what the railways did for Western Canada 125 years ago. It's time to lift the antiquated ban on hydrogen gas for use in blimps.
The Climate Change Committee has laid out a road map for net zero emissions that the UK government could follow.
Large radio telescope dish in Arecibo national observatory.
The Arecibo radio telescope has collapsed but its amazing discoveries will live on.
Hydrogen is feted as the key to a dynamic green economy. But is it the best choice for decarbonisation in all cases?
Don't count nuclear energy out – it may be our best hope of reaching net-zero emissions within the time we have left.
It's encouraging that the federal government recognises its role in industry policy. But its choice to support some technologies is disappointing.
Lukas Coch/AAP/Dave Hunt
The government's latest energy plans are a failure of logic, and will lock in fossil fuel use for decades.
The government has unveiled a $1.9 billion package of investments in new and emerging technologies, and reinforced its message that it is time to move on from assisting now commercially-viable renewables.
Tesla founder Elon Musk has described hydrogen-powered cars as "mind-bogglingly stupid". So is he right?
Hydrogen is hailed as a new clean fuel, but little attention has been paid to the potential environmental challenges presented by the energy shift.
Energy efficiency and electrification should lead the effort to decarbonise society, not hydrogen.
Australia could grab a huge chunk of the world's steel industry, and do it on the east coast, if it gets the technologies right.
An exoplanet and its atmosphere pass in front of its star (artist’s impression, from an imaginary point near to the planet).
NASA Goddard Space Flight Center
New research expands the pool of habitable worlds to include super-Earths with hydrogen-rich atmospheres.
Mick Tsikas/AAP Image
The world runs on energy, so finding low-emission alternatives to fossil fuels is crucial. Wind and solar are cheap and abundant but can't do everything. But hydrogen fuel could complete the picture.
Britain's electricity supply is getting greener but the burning question remains over how to decarbonise heating.
Sasol is in an advantageous position. Will it make the right moves?
There is a golden opportunity for South Africa to transition from being a key contributor to global warming to becoming a key contributor to global emissions reductions.
Hydrogen from renewable energy such as solar can be produced with zero emissions.
Coal and gas have been proposed as a way to make 'clean' hydrogen. But that road is full of challenges.
Chief Scientist Alan Finkel says Australia can be a world leader in hydrogen production and export.
Just 1kg of hydrogen can power a split-cycle air conditioner for 14.5 hours. The possibilities are endless - and now we have a plan to get there.
Hydrogen infrastructure in the right places is key to a cleaner, cheaper energy future.
Australia can become a renewable energy exporting superpower, but timidity won't get us there.