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Operators lost contact with the MethaneSAT satellite on 20 June, a significant blow to efforts to track - and stop - methane emissions ...

The arrow of time can teach us more about how the universe began - and how it will end, says quantum columnist Karmela Padavic-Callaghan ...

You may think you know static electricity, but its true nature has long eluded scientists. We've now made a huge leap towards finally figuring it out ...

People with Chiari malformations have a skull shape similar to Neanderthals, suggesting that the condition may be caused by DNA inherited from archaic humans ...

Antarctic sea ice extent has fallen dramatically in recent years - the effects include accelerated ocean warming, faster loss of inland ice sheets and severe impacts on wildlife ...

Micrometeorites are thought to shower down on planets throughout the universe, so the discovery that they help protocells form could tell us something about the chances of life elsewhere ...

From Austin Taylor to Nadia Afifi, there is lots to look forward to in the sci-fi out this month - including a novel which might be our culture editor Alison Flood's pick of the year so far ...

Eggs and embryos from people with polycystic ovary syndrome have altered patterns of so-called epigenetic tags, which could explain how the condition is inherited ...

AI models change their medical recommendations when people ask them questions that include colourful language, typos, odd formatting and even gender-neutral pronouns ...

Researchers have documented orcas seemingly gifting rays, seals and fish to scientists and divers, which could suggest they have theory of mind and engage in altruism - even across species ...