Expert Comment
Professor Don Pollacco on planetary alignments
Planetary alignments have always occurred; they are times when the planets in the solar system are all roughly positioned in the same direction when viewed from Earth. Given that we understand the orbits of the planets we can predict when these ‘alignments’ will occur. While the planets may look relatively close together in the sky they are of course separated by many millions of miles.
Prof Marianna Fotaki on the legacy of Boris Johnson's leadership
Abuse of power and evading responsibility when such abuse is uncovered lies at the heart of Boris Johnson's leadership.
Professor Fabio Camilletti on Silvio Berlusconi
Controversies aside, Silvio Berlusconi was so part of the political landscape in Italy that he seemed to be almost eternal. I am 46, and when he turned to politics, in 1994, I was still too young to vote. The first elections, as an Italian citizen, I voted for, in 1996, was already a referendum pro or against Berlusconi.
World Oceans Day: Microbiologist Dr Kim Summers on pollution
Our oceans are an incredible natural resource, but as a species, we are treating them like a garbage dump.
Assistant professor of Civil and Humanitarian Engineering, Modupe Jimoh, on the bombing of Ukrainian dam
The destruction of the Kakhovka hydroelectric power plant dam not only disrupts the generation of electricity, destabilizing the entire power grid; it also leads to flooding of the local area and loss of lives, livelihoods, properties and farmlands.