How you could help protect earth from an asteroid hit

I’m responding to an article by Pete Lawrence in the April 2025 issue, titled ‘Flora crosses the Leo Triplet’ (Big Three, in the Sky Guide), which spurred me to have a look for this minor planet. I al

What would you say if intelligent aliens came calling?

The world’s biggest digital camera telescope has started ...

Ten years ago, Pluto emerged from the gloom at the Solar System’s ragged edge – and a new world came in from the cold. Five billion kilometres (3 billion miles) from Earth, on 14 July 2015, NASA’s pia

Amazing answers to your curious questions

Neutron stars can suffer quakes far more powerful than anything on Earth