Europe
Asia
Oceania
Americas
Africa
Mysterious megastructures
MYSTERIES OF THE UNIVERSE
An
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
What are ‘little red dots’? Little red dots (LRDs) are compact red dots that were discovered in James Webb Space Telescope (JWST) data. Observations show that these objects are common in the early Uni
On 30 October 2025, a cross was set on the spire of Catalan architect Antoni Gaudí’s masterpiece, the Sagrada Familia cathedral of Barcelona, turning it into the world’s tallest church – a title previ
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
When Yerkes Observatory opened in Wisconsin in 1897, it was a wonder. Alongside the great one-metre (40-inch) telescope – the largest refractor ever built – the lavish facilities included the novelty
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