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July 2025

The Week in Space and Physics: When Giants Collide
On black hole collisions, hypervelocity stars, Betelgeuse's companion, and a hint of the missing antimatter.
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Alastair Williams
3
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.
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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
The Week in Space and Physics: The Third Interstellar Comet
On interstellar comets, navigating to the stars, the social lives of quarks, and the lost rivers of Mars
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Alastair Williams
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
The Week in Space and Physics: Vera Rubin’s First Images
On the first images from the Vera Rubin Observatory, the eclipses of Proba-3, a photograph of an exoplanet, and the Axiom-4 mission.
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Alastair Williams
3

June 2025

May 2025

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 Week in Space and Physics: The Aurora on Other Worlds
On photographing the aurora, proposed budget cuts for NASA, the next decade of China's space exploration, and ice around distant stars
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Alastair Williams
5
The Remarkable Underground Voyages of Michel Siffre
On life without time and company
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Alastair Williams
4
© 2025 Alastair Williams
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