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There’s a new coronavirus variant. Watch my video to find out why we’re worried (and how worried we should be).

Chatting ageing biology on The Russell Howard Hour!

Exactly where we predicted we’d be…

We continue to be in fairly big trouble: a very predictable quantity of trouble, in fact.

Vaccines are incredible—but I’m still worried about coronavirus.

I couldn’t find the graph I wanted to work out how worried to be about coronavirus hospitalisations, so I made it…

A new video on why Mars is so bright at the moment, and how to see it.

My book on ageing biology is now available for pre-order!

Venus joins the Seven Sisters for a once-a-decade sparkly spectacle.

We made a short animation about why it’s important to stay at home at the moment…and the surprising number of lives you could save.