Wild Geese: Greystones native Sarah Catterson runs online fitness coaching enterprise Strengthinus from the Spanish city of Marbella

Astronomers may have found a new way to investigate the Universe's first supermassive black holes. A faint gravitational-wave hum detected through pulsars could contain clues about ancient objects. Hypothetical Dark Stars, powered partly by dark matter, could have left black-hole descendants. These ancient black-hole seeds could grow and merge, producing part of the gravitational-wave background.

The four-seat gain Democrats need to win control once seemed all but out of reach. Odds are looking up, though the party still faces a tough path, with toss-up races in a half dozen (mostly red) states.

More than 100 undercover officers spied on tens of thousands of mainly leftwing activists over decades Prosecutors are examining whether to bring criminal charges against 12 former police officers who were involved in spying on political groups. The Crown Prosecution Service (CPS) is examining a file of evidence that the officers may have committed wrongdoing while working in controversial underc…

The US-Israeli bombing of Iran became a fight for the Strait of Hormuz. AJLabs counts the cost of the war.