Ukraine and Russia hold brief talks in Istanbul after Kyiv launches surprise drone attack
Ambassador to US heralds 'very successful defence operation'
What can the UK's muddy shores tell us about marine conservation in the Gulf?
Scientists studying carbon stores in seabeds hope the ocean can be used to slow rising temperatures
Jet jamming: Fighter plane future rests on mastering electronic warfare
Defence companies urgently study shooting down of French-made fighters by Pakistan
Newsletter