Author: The Conversation

For more than a decade we’ve been deeply immersed in a love affair with social media. And the thought of ending things can be painful. But like any relationship, if social media is no longer making you happy – and if curating your online persona is exhausting instead of fun – it might be time to say goodbye. Late last year, Meta (previously Facebook) came under intense scrutiny after leaked documents revealed the company was fully aware of the negative impact its products, Instagram in particular can have on users’ mental health. Meta went straight into damage control. But it seemed…

Many people think of privacy as a modern invention, an anomaly made possible by the rise of urbanization. If that were the case, then acquiescing to the current erosion of privacy might not be particularly alarming. As calls for Congress to protect privacy increase, it’s important to understand its nature. In a policy brief in Science, we and our colleague Jeff Hancock suggest that understanding the nature of privacy calls for a better understanding of its origins. Research evidence refutes the notion that privacy is a recent invention. While privacy rights or values may be modern notions, examples of privacy norms and privacy-seeking behaviors abound across cultures throughout human history and across geography. As privacy researchers…

Space travel is all about momentum. Rockets turn their fuel into momentum that carries people, satellites and science itself forward into space. 2021 was a year full of records for space programs around the world, and that momentum is carrying forward into 2022. Last year, the commercial space race truly took off. Richard Branson and Amazon founder Jeff Bezos both rode on suborbital launches – and brought friends, including actor William Shatner. SpaceX sent eight astronauts and 1 ton of supplies to the International Space Station for NASA. The six tourist spaceflights in 2021 were a record. There were also a record 19 people weightless in space for a short time in December, eight…

In the chart-topping Netflix documentary The Tinder Swindler, three women describe how they were defrauded by convicted conman Simon Leviev (who was born Shimon Hayut) after meeting him on the dating app. The film gives a detailed and deeply personal account of how Leviev used Tinder to connect with his victims and ultimately swindle them out of hundreds of thousands of dollars. I have been researching romance fraud for more than a decade. I have heard the painful and traumatic stories of hundreds of victims. While each story is unique, there are common factors, and some wider lessons to learn. The Tinder Swindler…

It’s probably no surprise that keeping healthy in space is incredibly important. And without the typical resources found on Earth, creative solutions have to be explored. Right now, some excited Year 10 and 11 students from around Victoria are waiting with anticipation as their space-made yoghurt – fresh off the International Space Station (ISS) – heads back to Australia from NASA facilities in the United States. The students worked with researchers at the Swinburne University of Technology to design an experiment investigating the nutritional values of space-made yoghurt. The results could provide insight into how to best help astronauts with…

Commercial spaceflight companies such as Virgin Galactic and Blue Origin are now offering exclusive opportunities for celebrities and civilians to travel to space. Traditionally, astronauts have been subject to rigorous training and medical scrutiny before going to space, and the risk of death from natural causes was considered remote. But in this new era of space tourism, it appears medical screening may not be carried out, and only minimal pre-flight training provided. With a wide variety of people now going to space, and the prospect in the coming years of humans establishing bases on the Moon and beyond, it raises an important question: what happens if someone dies in space?…

The COVID-19 pandemic, with its lockdown and social isolation, has added to the vulnerability of many Nigerians in several ways. Aside from health risks and disruption to livelihoods, the move from physical to virtual relationships heightened the exposure of people to cybercriminals. The pandemic has changed the landscape of cybercrime in the country. The government’s social and welfare interventions, to cushion the impact of the pandemic, presented an opportunity for fraudsters to take advantage of vulnerable people. These palliative interventions included food distribution, cash transfers and loan repayment relief. In addition, with social distancing and restrictions on movement, people have been doing more…

On April 20, 2010, the offshore oil rig Deepwater Horizon exploded, burned, sank in the Gulf of Mexico and terrified the world. This horrific accident — recorded as the largest oil spill in history — killed 11 workers and released 210 million gallons of crude oil into the ocean. While about a half of the oil rose to the surface, the other half formed a suspended plume of many tiny oil droplets about 1,000 metres below the surface. Its extent and whereabouts couldn’t be determined from above. Autonomous underwater vehicles (AUVs) are untethered marine robots that can explore the underwater world. AUVs were first…

In just a few months, a simple five-letter puzzle has earned its creator a seven-figure sum. The growth of Wordle, in which players attempt to work out a mystery word, has been rapid. At the start of November 2021, the online game was played by just 90 people. By the start of 2022, that number was 300,000, increasing to 2 million soon after. It has reached a level of popularity that made the New York Times value it at over US$1 million (£738,000). Part of the game’s value to users – and therefore to the publishers of the New York Times – is its simplicity.…

A group of 60 scientists called for a moratorium on solar geoengineering last month, including technologies such as stratospheric aerosol injection (SAI). This involves a fleet of aeroplanes releasing aerosol particles – which reflect sunlight back to outer space – into the atmosphere, cooling down the Earth. SAI might make the sky slightly whiter. But this is the least of our concerns. SAI could pose grave dangers, potentially worse than the warming it seeks to remedy. To understand the risks, we’ve undertaken a risk assessment of this controversial technology. A cooler Earth means less water would be evaporating from its surfaces into the atmosphere, changing rainfall patterns. This could produce…