Earth's deepest ecosystem discovered six miles below the sea

00:45 The deepest ecosystem ever discoveredResearchers have dived down to more than 9,000 metres below the surface of the Pacific and discovered surprisingly complex communities of life living in deep ocean trenches. The new research shows an array of animal life that appears to be using methane as a source of energy. The researchers are planning more dives to learn more about this mysterious ecosystem and how these animals can thrive despite the extreme pressure they face.Research Article: Peng et al09:36 Research HighlightsA fossilized leg bone reveals an 11-million-year-old fight between a terror bird and a caiman, plus the anti-ageing secret of ‘immortal’ stars.Research Highlight: Rumble in the Miocene: terror bird versus caimanResearch Highlight: ‘Immortal’ stars have an elixir of youth: dark matter11:45 How infections could awaken dormant cancerNew research reveals that infection by a respiratory virus has the potential to awaken dormant cancer cells. In mice studies, a team showed that inflammation caused by infection with influenza or SARS-CoV-2 could initiate the awakening of breast cancer cells that had metastasized to the lungs. Observational studies using human health data also showed that a COVID-19 infection was associated with increased risk of lung metastasis and cancer death. While the precise mechanisms are unknown, the team say that understanding the process could help mitigate any risks of cancer progression caused by a viral infection.Research Article: Chia et al.News and Views: Inflammation during viral infection can rouse dormant cancer cells21:45 Will physicists ever agree on quantum mechanics?A survey of more than 1,100 physicists has revealed that there are widely different interpretations of what quantum mechanics means for our understanding or reality. Reporter Lizzie Gibney takes us through the different ideas physicists have and asks if such disagreements even matter.Nature: Physicists disagree wildly on what quantum mechanics says about reality, Nature survey showsSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. Hosted on Acast. See acast.com/privacy for more information.