One closely-watched measure of Bitcoin mining revenue is hovering around a record low as the price of the

UTRECHT, the Netherlands--(BUSINESS WIRE)--May 25, 2023--

By Kanishka Singh WASHINGTON A U.S. judge on Thursday dismissed a lawsuit against Alphabet Inc's Google that was

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The Hubble Space Telescope has gone into “safe mode” for the third time in a week. The ageing, floating observatory – which was launched in 1990, with an expected lifespan of 15 years, and was last serviced by the space shuttle in 2009 – occasionally needs to be fixed from the ground when it runs into issues. This time, Nasa said it had entered safe mode because of an “ongoing gyroscope issue”. The space agency is “working to resume science operations”, it said. The current problems had begun 23 November, it said, and it is still not online. The telescope had been hit with the same issue twice in the days before, when it was also sent into safe mode – but came back online. Nasa said Hubble was otherwise in good health, and that its instruments were stable. It is able to operate with just one working gyroscope, but is less efficient when it does. When the spacecraft was serviced on the fifth and final visit from the space shuttle, in 2009, astronauts installed six new gyroscopes on Hubble. Three of those are still in operation, including the one currently having issues. The gyroscopes are used to aim the telescope around space. They measure Hubble’s turning and help it work out where it is pointing, so that it can be moved around in space. Nasa says that it believes Hubble will continue working, alongside other telescopes such as Webb, “throughout this decade and possibly into the next”. When it is no longer operational, Hubble will re-enter Earth’s atmosphere, though that is not expected to happen until the mid to late 2030s at the earliest. It is expected to have a propulsion system attached to it which will either push it down for a controlled fall into the Pacific Ocean or carry it further up into a higher orbit. Read More Nasa has received a signal from 10 million miles away SpaceX hints next Starship launch attempt could be soon Elon Musk believes OpenAI may have made ‘dangerous’ discovery

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Scientists have achieved a new world record for a next-generation solar cell, which holds the promise for novel applications like building-integrated and window solar panels. The breakthrough follows two years of research from the Hong Kong Polytechnic University into organic solar cells (OSCs), which until now have been too inefficient and costly to be used widely in practical applications. The research team invented a new technique to boost the stability of OSCs, achieving a power-conversion efficiency of 19.3 per cent. “The new finding will make OSC research an exciting field, and this will likely create tremendous opportunities in applications like portable electronics and building-integrated photovoltaics,” said Li Gang, a professor of energy conversion technology at Hong Kong Polytechnic University. “This is a very encouraging result for the long-standing research on OSCs that I have conducted over the past two decades. We have already achieved better OSC efficiency and this will subsequently help accelerate the applications of solar energy.” Professor Li and his team believe an efficiency rate above 20 per cent is now achievable using their new technique. The research is detailed in a study, titled ‘19.3% Binary Organic Solar Cell and Low Non-Radiative Recombination Enabled by Non-Monotonic Intermediate State Transition’, published in the scientific journal Nature Communications. The 19.3 per cent efficiency record is still a long way off other solar cell technologies, with researchers passing the 30 per cent barrier last year with a tandem design that used the so-called “miracle material” perovskite. OSCs are more lightweight and flexible than traditional silicon-based solar panels, as they consist of thin layers of organic semiconducting materials. The materials used are more environmentally friendly and 1,000-times thinner than silicon solar cells, meaning they have the potential to be vastly cheaper. They are also semi-transparent, allowing them to be used not just within building materials, but also on windows. Dozens of startups are already working on novel applications for harvesting solar energy, such as London-based Filia, which integrates solar technology into blackout blinds. California-based Ubiquitous Energy raised more than $30 million last year to push forward its vision of turning skyscrapers into “vertical solar farms” through the development of windows capable of converting sunlight into electricity. The firm aims to begin production at some point next year following further research and development. Read More Electric car range set to double with first production of breakthrough battery Solar panel efficiency to increase 50% with first production of ‘miracle’ tandem cells Solar panel efficiency to increase 50% with first ‘miracle’ tandem cells Elon Musk’s private jet lands in China for billionaire’s first visit in three years WhatsApp set to add major features including a new username system

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