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Science and Astronomy

The Mysterious Origins of the Third Interstellar Comet
The latest interstellar comet probably isn't an alien spaceship. But that doesn't mean we know where it really came from.
 • 
Alastair Williams
What Dark Energy Means For The End of Time
On the mysteries of dark energy and the fate of the universe
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Alastair Williams
1
Hubble Is Getting Old. Should We Try to Save It?
On the future of the Hubble Space Telescope.
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Alastair Williams
5
How Dust on the Ocean Floor Hints at a Recent Near-Earth Supernova
On the evidence for recent supernovae close to Earth
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Alastair Williams
1
The Remarkable Underground Voyages of Michel Siffre
On life without time and company
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Alastair Williams
4
The James Webb Still Hasn’t Found Life on K2-18b
Revisiting the rumours of life on K2-18b
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Alastair Williams
7
Did We Invent Mathematics? Or Did We Discover It?
On the reality (or not) of mathematics
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Alastair Williams
13
How the Einstein Ring Could Help Us Build the Greatest Telescope of All Time
On Einstein Rings and the ultimate telescope
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Alastair Williams
Why Not Venus?
On sending humans to the Earth's evil twin.
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Alastair Williams
2
The Nobel Prize in Physics: An Imitation of Thought
On the 2024 Nobel Prize in Physics
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Alastair Williams
4
The False Colours of Astronomy
The stars don't look like the telescopes say they do
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Alastair Williams
5
How to Destroy a Space Station
The end of the International Space Station will soon be upon us. What should we do with it?
 • 
Alastair Williams
8
© 2025 Alastair Williams
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