18.10.04 - Using gene editing to wipe out malaria-transmitting mosquitoes

Mobile phone companies could be set to erect bigger and taller phone masts as part of government plans to roll out 5G networks and improve coverage in rural areas. How might taller masts help with connectivity - and what is 5G anyway? Tech-xpert and Angel Investor Peter Cowley explains to Chris Smith and Katie Haylor...

Bacteria are becoming increasingly resistant to many of the agents we use to deal with them, including antiseptics. The bacterium Acinetobacter baumannii is one example and causes hard to treat skin, chest, and urine infections in hospitals. Now, a team at the University of Newcastle, Australia have discovered a gene that renders Acinetobacter resistant to the chemical chlorhexidine that's used in hand disinfectants. But the gene evolved long before the antiseptic was invented, so what was it doing previously? As well as finding out, Adam Murphy also heard from lead author Karl Hassan how the discovery could help us to make more environmentally-friendly forms of plastic.

A research team from Virginia Tech, led by Ryan Pollyea, has found that earthquakes 8 kilometres below the earth's surface are increasing in intensity. Published in the journal Nature Communications, the team's work has found that a super-dense liquid called oilfield wastewater is seeping deep into the sheets of the earth, causing massive pressure changes that could be increasing earthquake intensity. Matthew Hall got into contact with Ryan Pollyea and Martin Chapman from Virginia Tech to see what all the rumble is about...

A heatwave has been sweeping across Europe recently, causing record temperatures across the continent and creating a lot of consternation in the Naked Scientist office. But where do heatwaves come from. And what's going to happen in the future. Adam Murphy spoke to Manoj Joshi, professor of climate dynamics from the University of East Anglia, starting with what a heatwave even is...

Your genome contains all of your genetic information, and it's pretty long - the Human Genome Project estimated that humans have between 20,000 and 25,000 genes. But according to synthetic biology, you can survive on only 473! At least a very simple bacterium can. Of this "minimal genome", scientists previously didn't know what nearly a third actually did. But now Mark Wass has been telling Heather Jameson how his team at the University of Kent may have cracked 66 of the mystery genes...

The world's largest patch of seaweed appears every summer in the mid-Atlantic. Since 2011, the Great Atlantic Sargassum Belt has been growing to monstrous sizes - thousands of kilometres long - and it's been clogging up beaches along the Americas with metres of stinking brown sludge. Now, scientists in Florida and George have used satellite tracking to figure out what's going on - as Phil Sansom explains...

The nervous system is a complicated network of specialized cells, called neurons, that allow the transfer of information from one part of our body to another. To help our understanding of the nervous system in humans, scientists have been mapping the connections between neurons in a type of round worm, called C Elegans. C Elegans are so small that they are barely visible by the naked eye. So to obtain images of the worm, a special microscope, called an electron microscope is used. They take images along the worm, using an electron microscope and each image is analysed, and the neurons are marked. These marks are then put together to form a map of the neurons through the body of the worm. A map, known as a connectome. Connectomes give us more information on how signals transfer through our bodies, and which neurons are used for which actions. For example, how does the signal that tells my brain that it is hungry compare to a signal of pain from stubbing my toe? Due to the complicated nature of the nervous system, a lot of previous studies have focused on one area of the worm. For example, the brain. For the first time, a connectivity map has been drawn for the entire nervous system of a C- elegans, a type of round worm. I asked Professor Scott Emmons to describe what the work tells us.

You might remember from a year or so ago stories of an alien fly-by. The unidentified object was famously referred to as Oumuamua, which means "scout" in Hawaiian. Now a paper just out in the journal Nature Astronomy has revisited the story to probe whether Oumuamua really is alien technology, or just a cigar-shaped hunk of rock hurtling through the solar system. Matthew Hall got in touch with co-author Dr. Alan Fitzsimmons from Queens University Belfast...

In June, Izzie Clarke explored the extremely fast science of speed and headed to the race tracks with McLaren in their 600LT Spider supercar. But whilst Formula 1 and petrol racing have a huge fan base, we're also seeing the rise of electric racing, Formula E. In this bonus interview, Izzie spoke with Rodi Basso, Motorsport Director of Mclaren Applied Technologies, about the future of the sport.

With a rising global population, and the impending impacts of climate change, we need more food, and reliable food sources safeguarded for the future. But varying light levels mean that plant growing conditions aren't always consistent, as Katie Haylor has been finding out...