Those of us prone to believing in the inevitability of apocalyptic disasters have been a little perturbed by recent claims that NASA is on alert over an asteroid that will fly past Earth on Friday.

NASA scientists are warning that the Sun’s internal engine is behaving in ways they have not seen in years, pointing to an abrupt shift in the star’s magnetic and energetic rhythms that drive space ...

For only the third time in history, an object from beyond our own solar system is making an unexpected, high-speed pass through our cosmic neighbourhood. This time, the visitor is Comet 3I/ATLAS, and ...