Two of the forefathers of quantum theory, Albert Einstein and Niels Bohr, had a famous argument over whether light is a wave or a particle. Columnist Karmela Padavic-Callaghan finds that the matter has been settled once and for all

The crew of NASA’s Artemis II mission have captured extraordinary views of the moon, including close-ups of the far side and a breathtaking solar eclipse

The crew of NASA’s Artemis II mission have captured extraordinary views of the moon, including close-ups of the far side and a breathtaking solar eclipse

Training programmes for people with aphantasia – the inability to create mental images – are challenging neuroscientists' understanding of how we create thoughts

Training programmes for people with aphantasia – the inability to create mental images – are challenging neuroscientists' understanding of how we create thoughts

Amplifying the brain's waste disposal system seems to clear a substance that drives migraines, relieving some of the pain associated with the condition

Amplifying the brain's waste disposal system seems to clear a substance that drives migraines, relieving some of the pain associated with the condition

Anaerobic digesters converting manure to biogas reduce methane emissions from livestock, but incentives for them have encouraged factory farms to get bigger

Anaerobic digesters converting manure to biogas reduce methane emissions from livestock, but incentives for them have encouraged factory farms to get bigger

The biggest data centers in the U.S. are the backbone of cloud computing, digital services, and the rapidly expanding global data center market. These massive data centers store sensitive data, power cloud services, and support the internet traffic generated by tech companies, financial institutions, government agencies, and major enterprises.

Four NASA astronauts have now travelled further from Earth than any humans before them, as they flew around the moon during the Artemis II mission on 6 April

Four NASA astronauts have now travelled further from Earth than any humans before them, as they flew around the moon during the Artemis II mission on 6 April

Iodine deficiency is on the rise among people in the UK, the US and Australia. A century ago this led to drops in IQ, height and thyroid health – and the modern fancy salt fad may be leading to a resurgence, says columnist Alice Klein

Iodine deficiency is on the rise among people in the UK, the US and Australia. A century ago this led to drops in IQ, height and thyroid health – and the modern fancy salt fad may be leading to a resurgence, says columnist Alice Klein

Cornish sea salt crystals, pink Himalayan rock salt, smoked salt flakes – the use of gourmet salts is on the rise. But columnist Alice Klein finds it may be leading to a resurgence in iodine deficiency, with harmful consequences

Cornish sea salt crystals, pink Himalayan rock salt, smoked salt flakes – the use of gourmet salts is on the rise. But columnist Alice Klein finds it may be leading to a resurgence in iodine deficiency, with harmful consequences

For decades, scientists have tried and failed to explain how the force that binds the heart of atoms together really works. But new mathematical tools are finally prising the problem open

For decades, scientists have tried and failed to explain how the force that binds the heart of atoms together really works. But new mathematical tools are finally prising the problem open

Boosting the brain's waste-disposal system is increasingly showing promise for Alzheimer's disease, with a study now suggesting that a novel approach eases brain deficits and symptoms associated with the condition

Boosting the brain's waste-disposal system is increasingly showing promise for Alzheimer's disease, with a study now suggesting that a novel approach eases brain deficits and symptoms associated with the condition