Q&a with an early-universe specialist

What is a gamma-ray burst? Gamma-ray bursts (GRBs) are intense sources of high-energy radiation that we detect on Earth in the form of gamma rays. They were first detected in the 1960s by US military

An archæological mystery, first noticed accidentally due to aerial photography in 1933, is etched across the hillside of Monte Sierpe (Serpent Mountain) in the Pisco Valley in southern Peru. It takes

HUBBLE SPACE TELESCOPE, 22 DECEMBER 2025 Spiral galaxies MCG-02-05-050 (right) and -050a (left) are together known as Arp 4. That means they feature in Halton Arp's Atlas of Peculiar Galaxies, compile

Amazing answers to your curious questions

So you thought the Universe was a place of peace and calm? Think again. Yes, the night sky looks the same as centuries ago – a trustworthy and unchanging backdrop to daily life that helps to ease your

The interstellar comet or spacecraft, 3I/Atlas (FT465:27) excited the world of ufology in 2025. Despite Avi Loeb’s best efforts, most experts regarded it as an unusual object but not a 33-billion-ton