Matteo Luisi, director of the planetarium and observatory at Westminster College, will present the 2025 Henderson Lecture.

For the pair of galaxies, the hot gas cloud of ionized gas, filled with free electrons and which stretches for millions of light years around the cluster is like tumbling into a vat of treacle that ...

This image captures a richly detailed section of the Milky Way, showcasing a tapestry of stars and glowing nebulas. Against a black cosmic backdrop, countless white stars sparkle like scattered ...