Author: The Conversation

Most CubeSats weigh less than a bowling ball, and some are small enough to hold in your hand. But the impact these instruments are having on space exploration is gigantic. CubeSats – miniature, agile and cheap satellites – are revolutionizing how scientists study the cosmos. A standard-size CubeSat is tiny, about 4 pounds (roughly 2 kilograms). Some are larger, maybe four times the standard size, but others are no more than a pound. As a professor of electrical and computer engineering who works with new space technologies, I can tell you that CubeSats are a simpler and far less costly way to reach other…

What is the first thing you do in the morning after you awaken? Many people immediately check their phones for notifications of messages, alerts and social media updates on their social ties. Ninety-seven percent of U.S. adults report owning a cellphone, with 90% reporting that they own a smartphone. While some researchers and media outlets portray phone use as detrimental, the reality is that the effects of technology use, including phones, vary depending on multiple factors. These include the amount, type, timing and purpose of that use. What is best for one group may not be best for another when thinking about technology use.…

The sight of solar panels installed on rooftops and large energy farms has become commonplace in many regions around the world. Even in grey and rainy UK, solar power is becoming a major player in electricity generation. This surge in solar is fuelled by two key developments. First, scientists, engineers and those in industry are learning how to make solar panels by the billions. Every fabrication step is meticulously optimised to produce them very cheaply. The second and most significant is the relentless increase in the panels’ power conversion efficiency – a measure of how much sunlight can be transformed…

Have you noticed certain words and phrases popping up everywhere lately? Phrases such as “delve into” and “navigate the landscape” seem to feature in everything from social media posts to news articles and academic publications. They may sound fancy, but their overuse can make a text feel monotonous and repetitive. This trend may be linked to the increasing use of generative artificial intelligence (AI) tools such as ChatGPT and other large language models (LLMs). These tools are designed to make writing easier by offering suggestions based on patterns in the text they were trained on. However, these patterns can lead to the overuse of…

OpenAI, the company that made ChatGPT, has launched a new artificial intelligence (AI) system called Strawberry. It is designed not just to provide quick responses to questions, like ChatGPT, but to think or “reason”. This raises several major concerns. If Strawberry really is capable of some form of reasoning, could this AI system cheat and deceive humans? OpenAI can program the AI in ways that mitigate its ability to manipulate humans. But the company’s own evaluations rate it as a “medium risk” for its ability to assist experts in the “operational planning of reproducing a known biological threat” – in other words, a…

Taking photographs used to be a careful, conscious act. Photos were selective, frozen moments in time carefully archived in albums and frames. Now, taking a photograph is almost as effortless and common as breathing – it’s something that people do all the time in the age of smartphone cameras with seemingly endless digital film. But the downside to capturing every moment is that it creates a mountain of those moments to save for the future. Those photos can be easily lost if they’re not archived properly. All it can take is one accidental dip in the toilet for your phone,…

NASA astronauts Butch Wilmore and Suni Williams were meant to go to the International Space Station (ISS) on a roughly ten-day mission. Instead, they have been “stuck” there since June, as the reliability of their spacecraft – Boeing Starliner – has not met NASA’s strict standards for crewed flight. After two months of testing, NASA has now made the call that Starliner will return to Earth in September without astronauts aboard. This will enable both NASA and Boeing to monitor the craft carefully as it separates from the ISS and makes its way home. Because human life is part of the…

Neil Harbisson is the world’s first officially recognised human cyborg, having had a device installed in his head to enable him to “hear” colours in the early 2000s. He is the subject of Cyborg: A Documentary, the first full-length film by London-based director Carey Born. This thought-provoking work, which launched in UK cinemas on September 20, not only chronicles Harbisson’s unique journey but also explores the philosophical and ethical questions surrounding human augmentation. Born without the ability to see any colours, the Catalan-born artist’s life took an extraordinary turn when he decided to augment his sensory experience. He used an…

Earth is going to have its very own mini-moon from September 29 until November 25. The regular Moon’s new, temporary friend is 2024 PT₅, an asteroid captured from the Arjuna asteroid group (called the “Arjunas”). Our new mini-moon is approximately 10 metres in diameter and will be captured by Earth’s gravity for 57 days. It’s small and faint, so it won’t be visible by the eye or with small telescopes, but will be visible to larger telescopes. Newly-discovered #asteroid 2024 PT5 is about to undergo a “mini-moon event” when its geocentric energy becomes negative from September 29 – November 25.https://t.co/sAo1qSRu3J pic.twitter.com/pVYAmSbkCF…

On September 4 2024, astronomers discovered an asteroid, one metre in diameter, heading towards Earth. The space rock would burn up harmlessly in the atmosphere near the Philippines later that day, officials announced. Nevertheless, it produced a spectacular fireball that was shared in videos posted on social media. The object, known as RW1, was only the ninth asteroid to be spotted before impact. But what of much bigger, more dangerous asteroids? Would our warning systems be able to detect all the asteroids that are capable of threatening us on the ground? Asteroid impacts have influenced every large body in the solar system. They…