121 years after Einstein’s landmark paper on the photoelectric effect, the discovery that light arrives in photons still underpins modern physics, from solar panels to quantum theory, and explains how frequency, not intensity, releases electrons

Unlike Gaza, the Lebanon campaign poses new challenges for the Medical Corps: long distances, mountainous terrain and aerial threats, as commanders work to cut evacuation times, bring whole blood to the front and prepare for future war scenarios

The Baltic Sea is warming faster than most oceans and losing ice, while facing eutrophication and dead zones but decades of monitoring and early restoration make it a ‘living laboratory’ for how climate change will reshape coastal seas

Health Ministry tightens restrictions over cyber risks and concerns that sensitive patient information could be exposed through public platforms

'Supergirl,' the second film in James Gunn’s DCU reboot, is panned as a muddled, uneven adaptation of 'Woman of Tomorrow', with a weak script, tonal confusion and troubled production, despite Milly Alcock and Jason Momoa’s efforts