Anyone who has watched enough nature documentaries will know that life can exist pretty much anywhere on Earth. One episode of the Blue Planet II series showed a hydrothermal vent – a crack in the mid-ocean ridge where hot gases and water pour out. Bacteria thrive in the scalding water around the vents, getting their energy from chemicals like hydrogen and sulphur, and enabling a rich ecosystem of bacteria-eating crabs, shrimps, and other animals to build up to such a density that it rivals Continue reading
What does astronomy have to do with the living world? Is a vast universe really necessary to life? Any does science say anything at all about purpose? In today’s podcast (transcript below) I discussed these questions with astrophysicist Dr Jennifer Wiseman, who shared some of her personal perspectives. Jennifer is a person of faith who has spent time thinking about the questions about meaning and purpose that her work raises. For her, science does not compel belief in God, but it can vastly enrich the sense of a purposeful and awe-inspiring creation. Continue reading
How can a universe that seems so cold, dark, and sterile become a place where life can flourish? This is one of the questions that the astronomer Dr Jennifer Wiseman asked in her seminar at the Faraday Institute last month. In her talk, part of which I have summarised here in my own words, she explained why the cosmos can be seen as a very fruitful place – and why this idea is compatible with her own sense of purpose for the world.
Jennifer grew up on a farm in Arkansas, where she came to know the stars in a way that those of us who have lived in light-polluted cities all our lives could never appreciate. She went Continue reading
There is something about the sight of a bubble hanging effortlessly in the air that excites a childlike wonder in us, whatever our age. Perhaps it’s their delicate beauty, almost transparent, glimmering with a rainbow of colours? Perhaps it’s the temptation to pop them? For me, the most amazing thing about bubbles is that they make themselves. Continue reading
Water is a strange thing. The unique structure of its molecules allow it take on three different forms: a liquid that is easily absorbed into porous substances (i.e. it’s wet!), ice that floats, and a gas. In the book Water and Life: The Unique Properties of H2O, the biophysicist Felix Franks has contributed a chapter explaining some of these properties, and how they may have played a part in the origin of life.
Physicists working at the atomic or molecular scale are revolutionising industry with their ultra-small chips and mini-machines, but in a sense nanotechnology is nothing new. Nature got there first, and we are only just beginning to catch up Continue reading