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I've always wondered: why are the stars, planets and moons round, when comets and asteroids aren't?

Shutterstock

I’m puzzled as to why the planets, stars and moons are all round (when) other large and small objects such as asteroids and meteorites are irregular shapes?


Originally published in The Conversation.

The 'martyrdom effect': why your pain boosts a charity’s gain

This weekend, participants in the Kokoda Challenge will complete a gruelling 96-kilometre overnight trek to raise money for youth programs.


Originally published in The Conversation.

Travelling through deep time to find copper for a clean energy future

Stunning mosaic of oxidised copper in the form of azurite (blue) and malachite (green) in a rock. Dimitri Houtteman, Author provided

More than 100 countries, including the United States and members of the European Union, have committed to net-zero carbon emissions by 2050.


Originally published in The Conversation.

Facial recognition for gamers, app store bans for Didi: what's behind China's recent crackdown on big tech?

Mark Schiefelbein/AP

Over the past few weeks, the Chinese government’s crackdown on big tech companies has intensified.


Originally published in The Conversation.

Is Australia a sitting duck for ransomware attacks? Yes, and the danger has been growing for 30 years

Massimo Botturi/Unsplash, CC BY-SA

Australian organisations are a soft target for ransomware attacks, say experts who yesterday The Conversation.

How to see tonight's conjunction of Venus and Mars in the evening sky

SolarSystemScope SolarSystemScope, CC BY-SA

Venus has returned to our evening skies and is looking lovely in the north-west after sunset.


Originally published in The Conversation.

Studying social media can give us insight into human behaviour. It can also give us nonsense

Shutterstock

Since the early days of social media, there has been excitement about how data traces left behind by users can be exploited for the study of human behaviour.


Originally published in The Conversation.

Third-largest diamond found in June, then a bigger one days later. What's behind the monster gem boom?

Lucara Diamond Corp

A mega diamond of a staggering 1,174 carats was recently recovered from the Karowe mine in Botswana,


Originally published in The Conversation.

Branson vs Bezos: as the billionaires get ready to blast into space, who's got the better plan?

Blue Origin

Over the next fortnight, Blue Origin founder Jeff Bezos and Virgin Galactic founder Richard Branson will take off into space, because The Conversation.

We found a new type of stellar explosion that could explain a 13-billion-year-old mystery of the Milky Way's elements

NASA/WikiCommons

Until recently it was thought neutron star mergers were the only way heavy elements (heavier than Z


Originally published in The Conversation.