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Antarctic bacteria live on air and make their own water using hydrogen as fuel

Ian Hogg, Author provided

Humans have only recently begun to think about using hydrogen as a source of energy, but bacteria in Antarctica have been doing it for a billion years.

Originally published in The Conversation.

A chunk of Chinese satellite almost hit the International Space Station. They dodged it – but the space junk problem is getting worse

NASA / Boeing

Earlier this week, the International Space Station (ISS) was forced to maneouvre out of the way of a potential collision with space junk.

Originally published in The Conversation.

We studied suicide notes to learn about the language of despair – and we're training AI chatbots to do the same


While the art of conversation in machines is limited, there are improvements with every iteration.

Originally published in The Conversation.

Technology-enabled abuse: how 'safety by design' can reduce stalking and domestic violence

Dragana Gordic / Shutterstock

Mobile phones and online technologies are frequently used by perpetrators of domestic and family violence to coerce, control and restric

Originally published in The Conversation.

The Moon's top layer alone has enough oxygen to sustain 8 billion people for 100,000 years


Alongside advances in space exploration, we’ve recently seen much time and money invested into technologies that could allow effective space resource utilisation.

Originally published in The Conversation.

We revisited Parramatta's archaeological past to reveal the deep-time history of the heart of Sydney

Australian paintings by J.W. Lewin, G.P. Harris, G.W. Evans and others, 1796-1809; State Library of NSW, Author provided

We know quite a lot about the past 200 years of history in Parramatta.

Originally published in The Conversation.

Land ahoy: study shows the first continents bobbed to the surface more than 3 billion years ago

Author provided

Most people know that the land masses on which we all live represent just 30% of Earth’s surface, and the rest is covered by oceans.

Originally published in The Conversation.

Astroworld tragedy: here's how concert organisers can prevent big crowds turning deadly

A fatal crowd surge during a performance by US rapper Travis Scott on Friday night has become one of the deadliest live music incidents in recent years.

Originally published in The Conversation.

Cleo Smith case: how 'cognitive interviewing' can help police compile the most reliable evidence

With Cleo Smith safely returned to her family, and charges laid against her alleged abductor, much of the media’s focus has now turned to the question of how police can best piece together the details of what exactly happened to her during the 18 days she was missing.

Originally published in The Conversation.