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Almost half a million tests, zero positives: how statistics show we can be confident COVID-19 is gone from Victoria

How do you know that something you are looking for is not there? Looking for a needle in a haystack is fundamentally easy – however laborious and tedious – if you know it’s definitely there. Looking for something, not finding it, and therefore concluding it does not exist is a different problem.

In Victoria, at the time of writing, we have had 35 consecutive days of zero newly detected COVID-19 infections. But, obviously, not everyone in the state has been tested.


Originally published in The Conversation.

The Hayabusa2 spacecraft is about to drop a chunk of asteroid in the Australian outback

Trevor Ireland, Author provided

Before most people wake up this Sunday morning, a small space capsule will be dropped off to Earth, landing in Woomera, South Australia.


Originally published in The Conversation.

Freaky ‘frankenprawns’: ancient deep sea monsters called radiodonts had incredible vision that likely drove an evolutionary arms race

The radiodont _Anomalocaris_, with its large stalked eyes, is considered a top predator that swam in the oceans more than 500 million years ago. Katrina Kenny, Author provided

Deep sea animals can be the stuff of nightmares.


Originally published in The Conversation.

The floor is lava: after 1.5 billion years in flux, here's how a new, stronger crust set the stage for life on Earth

Shutterstock

Our planet is unique in the Solar system. It’s the only one with active plate tectonics, ocean basins, continents and, as far as we know, life.


Originally published in The Conversation.

'WTF?': newly discovered ghostly circles in the sky can't be explained by current theories, and astronomers are excited

Bärbel Koribalski / ASKAP, Author provided

In September 2019, my colleague Anna Kapinska gave a presentation showing interesting objects she’d found while browsing our new radio astronomical data.


Originally published in The Conversation.

COVID has left Australia's biomedical research sector gasping for air

Shutterstock

While COVID-19 has highlighted the value of medical research, it has unfortunately also seriously disrupted it.


Originally published in The Conversation.

From Hobart, to London, to Dhaka: using cameras and AI to build an automatic litter detection system

Shutterstock

It’s estimated about two million tonnes of plastics enter the oceans from rivers each year.


Originally published in The Conversation.

We've mapped a million previously undiscovered galaxies beyond the Milky Way. Take the virtual tour here.

CSIRO, Author provided

Astronomers have mapped about a million previously undiscovered galaxies beyond the Milky Way, in the most detailed survey of the southern sky ever carried out using radio waves.


Originally published in The Conversation.

'War in space' would be a catastrophe. A return to rules-based cooperation is the only way to keep space peaceful

SpaceX

In 2019, US President Donald Trump declared “space is the new war-fighting domain”.


Originally published in The Conversation.