Previously acting editor of BBC Earth, environment news editor for New Scientist. I mostly write about life sciences and the environment
The secret of how life on Earth began
The answer to one of the biggest questions of all
The physics that tells us what the Universe is made of
The building blocks of the cosmos
Why you should mostly trust what science tells you
Even though scientists sometimes make mistakes
Why bother saving endangered species?
It will cost billions of dollars. Is there anything in it for us?
The 25 biggest turning points in Earth's history
From leaps forward in evolution to devastating asteroid impacts, these were the milestones that shaped our world
The future may be set in stone
Physics suggests that the future has already happened
Why the sky is dark at night
It may seem obvious, but the dark sky tells us a lot about the Universe
What did the Big Bang look like?
It was the birth of our entire Universe
Earth probably has more than one moon a lot of the time
We all know about the Moon, but not the other one
Why the New Horizons flyby of Pluto is so amazing
We are all gazing at an entirely new world
The event that transformed Earth
More than 2 billion years ago, Earth suddenly became more habitable. But why?
Arabia was once a lush paradise of grass and woodlands
Nowadays Arabia is a fierce desert, but it was once densely vegetated, and could have been a home to the first humans that left Africa
The biggest flies in the world
Two obscure groups of tropical flies are the giants of the fly world
Coconut crabs are the biggest arthropods living on land
Meet the coconut crab: a land crab so big and powerful, it can break open coconuts with its pincers, and even hunt rats
Microscopic vampire amoebas are swarming ...
Single-celled bloodsuckers called vampyrellids creep through the soil beneath your feet