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Ancient stone tools found on Sulawesi, but who made them remains a mystery

Limestone 'tower' karst region of Maros in the south of Sulawesi, where Leang Burung 2 is located. D.P. McGahan , Author provided

Another collection of stone tools dating back more than 50,000 years has been unearthed on the Indonesian island of Sulawesi.

Originally published in The Conversation.

Captured! Radio telescope records a rare 'glitch' in a pulsar's regular pulsing beat

The Vela pulsar makes about 11 complete rotations every second, it also has a glitch. X-ray: NASA/CXC/Univ of Toronto/M.Durant et al; Optical: DSS/Davide De Martin

Pulsars are rapidly rotating neutron stars and sometimes they abruptly

Originally published in The Conversation.

Location and voice technology are the future of retail

Retailers have refocussed their attention on location – but not their location, your location. Shutterstock

Retailers, struggling to connect with their customers, have been trialling new techno

Originally published in The Conversation.

Target Earth: how asteroids made an impact on Australia

Gosses Bluff impact crater in the Northern Territory. NASA’s Earth Observatory

Our planet has had a few close encounters with asteroids of late.

Originally published in The Conversation.

Curious Kids: How does glow in the dark paint work?

While some things glow all the time, glow-in-the-dark paint must be 'told to glow' - just like a phone needs to be charged or it won't work. Mai Lam/The Conversation NY-BD-CC, CC BY-SA

This is an article from

Originally published in The Conversation.

Banning MPs from private messaging apps is a simplistic response to a complex problem

Queensland's Ministerial Code now bans Ministers from using private email and messaging apps. Shutterstock

Queensland updated its The Conversation.

Aftershocks hit Papua New Guinea as it recovers from a remote major earthquake

Another powerful aftershock hit Papua New Guinea this weekend as the recovery effort continues following February’s deadly magnitude 7.5 earthquake, with many thousands of people dependent on humanitarian aid.

Originally published in The Conversation.

Take it from me: I'm not signing up to become a space tourist just yet...

Kids dream about going to space – and some very wealthy adults are booking tickets.

Originally published in The Conversation.

How to stop haemorrhaging data on Facebook

Every time you open an app, click a link, like a post, read an article, hover over an ad, or connect to someone, you are generating data. Shutterstock

If you are one of 2.2 billion Facebook u

Originally published in The Conversation.