Ancient DNA reveals make-up of Roman Empire’s favourite sauce 02. July 2025 (02:01) Bones found at the site of an ancient fish-processing plant were used to genetically identify the species that went into a fish sauce, often known as garum, eaten throughout the Roman Empire(New Scientist)
Breaking the laws of thermal radiation could make better solar cells 01. July 2025 (23:00) It is possible to make a material absorb more radiation than it has to re-emit, violating the laws of physics in a way that could make energy-harvesting devices more efficient(New Scientist)
A crucial methane-tracking satellite has died in orbit 01. July 2025 (22:30) Operators lost contact with the MethaneSAT satellite on 20 June, a significant blow to efforts to track – and stop – methane emissions(New Scientist)
Where does time actually come from? 01. July 2025 (20:00) The arrow of time can teach us more about how the universe began – and how it will end, says quantum columnist Karmela Padavic-Callaghan(New Scientist)
Shrinking Antarctic sea ice is warming the ocean faster than expected 01. July 2025 (15:30) 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(New Scientist)
Protocells self-assembling on micrometeorites hint at origins of life 01. July 2025 (13:20) 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(New Scientist)
The best new science fiction books of July 2025 01. July 2025 (12:00) 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(New Scientist)
