It’ll be Tough to Stop an Asteroid at the Last Minute, but not Impossible

On September 26th, 2022, NASA’s Double-Asteroid Redirect Test (DART) made history when it rendezvoused with the asteroid Didymos and impacted with its moonlet, Dimorphos. The purpose was to test the “Kinetic Impact” method, a means of defense against potentially hazardous asteroids (PHAs) where a spacecraft collides with them to alter their trajectory. Based on follow-up … Read more

Mutation in key molecules could stop gonorrhea infection

mBio (2022). DOI: 10.1128/mbio.01670-22″ width=”800″ height=”389″/> Variant tdfJ genes are expressed from an inducible ectopic site in the gonococcal chromosome. Wild-type and mutated forms of tdfJ were cloned into a complementation vector designed to insert into an ectopic site of the gonococcal chromosome between the aspC and lctP loci. This construct contains an IPTG-inducible promoter … Read more

Sydney cockatoos are still opening curbside bins, despite our best efforts to stop them

Credit: Barbara Klump, author provided Bloody hell! That cockatoo just opened my bin, and it’s eating my leftover pizza. We can’t have that, I’ll put a rock on the lid to stop it opening the bin. Problem solved…? And so began an arms race in the suburbs of southern Sydney: humans trying to deter sulfur-crested … Read more

Stop dissing pessimism—it’s part of being human

Credit: Pixabay/CC0 Public Domain In today’s society, being happy and having an optimism attitude are social expectations that weigh heavily on how we live and the choices we make. Some psychologists have pointed out how happiness has evolved into an industry. In turn, this has created what I call a happiness imperative, the social expectation … Read more

Stop the endless expansion and work with what our cities already have

CC BY” width=”754″ height=”530″/> Credit: The Conversation/CC BY Australian cities are good at growing—for decades their states have relied on it. The need to house more people is used to justify expansion out and up, but it is the rates, taxes and duties that flow from land transfers and construction that drives the endless development … Read more

Is declaring a climate emergency enough to stop the climate crisis? What we can learn from the COVID-19 pandemic

Credit: CC0 Public Domain Dr. Jordi Mazon is professor of meteorology at the Department of physics at the Technical University of Catalonia (BarcelonaTech) and teaches higher-level physics in the international baccalaureate at Aula higher school in Barcelona. In addition, he is currently Deputy Mayor of energy transition, mobility, and city cleaning management in Viladecans, a … Read more

US announces a stop to testing anti-satellite weapons

Photograph of Canadaarm2 hit by a piece of space debris. Credit: NASA The United States Government has declared that it will no longer be performing tests of anti-satellite (ASAT) weapons. In a public statement during a visit to the Vandenberg Space Force Base, Vice President Kamala Harris confirmed that this policy has the primary purpose … Read more

How can we stop fake election news spreading in migrant communities?

Credit: Shutterstock Concerns about fake news and misinformation spreading on social media among Chinese communities are once again emerging, as they were during the 2019 election campaign. There have been claims against both major parties in recent weeks. The ABC reported a group of Liberal Party supporters systematically spread fake news about prominent Labor supporters … Read more