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BBC NewsA Nasa probe into hundreds of UFO sightings found there was no evidence aliens are behind unexplained phenomena, but the space agency also could not rule out that possibility.If the truth is out there, this long-awaited report offers no conclusive evidence.

It's in the dirt on the ground, the debris on your roof, and the dust that tickles your nose – tiny pieces of "cosmic dust", everywhere. These microscopic particles from outer space are micrometeorites – mostly the debris from comets and asteroids – and they have settled all over our planet.

South East Asia correspondentA woman has just discovered the bodies of her husband and brother in her garden in Bucha, a suburb of the Ukrainian capital Kyiv. The bodies are dusted with frost. She lays one hand on her brother, while the fingers of her other hand touch her mouth.

People living with long Covid after being admitted to hospital are more likely to show some damage to major organs, according to a new study. MRI scans revealed patients were three times more likely to have some abnormalities in multiple organs such as the lungs, brain and kidneys.

BBC NewsA military judge at Guantanamo Bay has ruled one of the five defendants charged over the 9/11 attacks is not fit to stand trial in a death-penalty case.

To play this video you need to enable JavaScript in your browser.BBC Science CorrespondentThe American space agency Nasa has launched its most powerful ever rocket from Cape Canaveral in Florida. The 100m-tall Artemis vehicle climbed skyward in a stupendous mix of light and sound.

• A classic scene from City Lights in which Charlie Chaplin ends up in a boxing match with a prizefighter (Hank Mann). © Roy Export SAS • Subscribe to our channel: http://bit.ly/TheChaplinFilms • Listen to Full Soundtrack on Youtube: http://bit.ly/CityLightsSoundtrack • Download Charlie Cha

We’re used to thinking hugely well of democracy. But interestingly, one of the wisest people who ever lived, Socrates, had deep suspicions of it. To buy books on philosopy and other themes from The School of Life, visit our online shop: https://goo.gl/mQYmze Join our exclusive mailing list: http

Currently trending is the surprising notion that many men think frequently about the Roman Empire – something that speaks to the enduring appeal of an empire that thrived some 2,000 years ago.

In August, Grindr gave its workers a return-to-office ultimatum: either agree to work twice a week in person from October, or lose their jobs.

Nasa's Osiris-Rex capsule will come screaming into Earth's atmosphere on Sunday at more than 15 times the speed of a rifle bullet. It will make a fireball in the sky as it does so, but a heat shield and parachutes will slow the descent and bring it into a gentle touchdown in Utah's West Desert.

Claudia Caramanna has only been in her role two years and her work is already attracting unwanted attention. A year ago, an anonymous letter with a hand-drawn cross on it was sent to her home.

The family of a US man who drowned after driving off a collapsed bridge are claiming that he died because Google failed to update its maps. Philip Paxson's family are suing the company over his death, alleging that Google negligently failed to show the bridge had fallen nine year earlier.

Venezuela has sent 11,000 troops to regain control of one of its biggest prisons that had been overrun by a powerful criminal gang. The Tocoron prison, in the north of the country, was under the control of the Tren de Aragua mega-gang for years.

Image source, Geoff DullerScience correspondent, BBC NewsThe discovery of ancient wooden logs in the banks of a river in Zambia has changed archaeologists' understanding of ancient human life. Researchers found evidence the wood had been used to build a structure almost half a million years ago.

For the first time ever, more than one in 10 people in Japan are now aged 80 years or older. Official data released to mark Japan's annual Respect for Aged Day holiday also shows the proportion of Japanese over 65 at a record of 29.1% this year.

Blue zones are regions of the world thought to have a higher than usual number of people live much longer than average, identified by Gianni Pes and Michel Poulain.

Image source, Getty ImagesA Danish artist has been ordered to return nearly 500,000 kroner (€67,000) to a museum after he supplied it with two blank canvasses for a project he named "Take the Money and Run".

The sea-ice surrounding Antarctica is well below any previous recorded winter level, satellite data shows, a worrying new benchmark for a region that once seemed resistant to global warming. An unstable Antarctica could have far-reaching consequences, polar experts warn.

Runners have told BBC Scotland they are "gutted" after seeing their personal bests invalidated because the Great Scottish Run was 150m short – for the second time in six years. Organisers admitted there had been a major error in this year's 10km course at the event in Glasgow.