pallab ghosh, bbc news.n los angeles. the tcl chinese theater handprints—footprints tribute has been a prestigious hollywood honour for the past 95 years. the actress signed the date as october 31, halloween, rather than the day's date, october 12, in homage to the film that launched her movie career. before we go — bear with us — for the finale of a story that's gripped the world. a new champion has been crowned in this year's fat bear week. yes, that is a competition, with cameras following bears across katmai national park in alaska as they devour fish ahead of their winter hibernation. and the winner is...bear 747. here he is back injune at the start of the salmon run, and here he is in september. since then, he kept gaining weight, reaching an estimated 635kg — that's1,400 pounds — and becoming one of the largest brown bears on earth. that is it from us. for now, you can reach me on twitter. goodbye. hello there. 0ur weather story is becoming a little bit more unsettled as we head towards the weekend. n

here's our science correspondent, pallab ghosh.n in a lab. researchers connected cells similar to these to a computer. under the microscope, you can see the tiny wires that sent electrical impulses in and out. it learnt to play a 1970s game called pong, in the rectangle on the screen. the lab—grown brain moves a white line to try and stop the dot getting past. right now, we have the chance for drug discovering, disease modelling, understanding intelligence. the next stage could open up options such as cybersecurity management, or more autonomous devices. finally, perhaps we could even lead to sentient and fully autonomous robots that can act and change in the real world. the researches grew a clump of 800,000 brain cells from a mixture of mouse neurons and human stem cells. the plan is to see if more of these mini—brains become worse at playing the game after they've been dosed with alcohol, just like a human player would. mini—brains are also being grown in a uk lab in order to study brain development. it's taken researchers six w

pallab ghosh, bbc news.d are the ethical dilemmas that will come from that, is that something that keeps you awake at night? haste is that something that keeps you awake at night?— is that something that keeps you awake at night? we are taking very delicate steps _ awake at night? we are taking very delicate steps to _ awake at night? we are taking very delicate steps to make _ awake at night? we are taking very delicate steps to make sure - awake at night? we are taking very delicate steps to make sure we - awake at night? we are taking very delicate steps to make sure we are j delicate steps to make sure we are aware of this in a technology that we develop is developed appropriately and applied responsibly. and we know that some of the sound bites bites like sentencing consciousness are used interchangeably. there are two different things that are defined in the way that we use the terms. it is a system that is able to receive external sensory input and receive information from the outside and act upon tha

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our science correspondent, pallab ghosh, has been finding out more.ctrical impulses in and out. it learnt to play a 19705 game called pongin learnt to play a 19705 game called pong in the rectangle on the screen. the lab grown brain moves are white blind you try to stop the dots getting past. blind you try to stop the dots getting past-— blind you try to stop the dots llettin last. ., ., getting past. right now we have the chance for drug _ getting past. right now we have the chance for drug discovery, _ getting past. right now we have the chance for drug discovery, disease i chance for drug discovery, disea5e modelling, understanding intelligence. the next stage could open up options such as cyber security management or a more autonomous devices, and finally perhap5 autonomous devices, and finally perhaps it could even lead to sentience and fully autonomous robots that can act and change in the real world. the robots that can act and change in the real world.— robots that can act and change in the real world. , ., . , the real world. the researchers