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The Myth and Mystery of The Tunguska Impact
What was it that exploded over Siberia in 1908?
Oct 9
•
Alastair Williams
23
5
On Progress and Revolution in Physics
Thoughts on the nature of science
Oct 3
•
Alastair Williams
11
September 2025
The Week in Space and Physics: Hunting The Primordial Black Holes
On traces of the first black holes, Dream Chaser, how the Moon rusted, and the launch of IMAP
Sep 30
•
Alastair Williams
22
4
Was There Life on Mars?
A rover on the Red Planet stumbles across an intriguing hint of a long gone world
Sep 19
•
Alastair Williams
9
2
The Week in Space and Physics: Was There Life on Mars?
On a discovery on Mars, the folly of a new Moon race, Trappist 1e, and the approach of an interstellar comet
Sep 16
•
Alastair Williams
34
3
The Week in Space and Physics: Revisiting the Wow! Signal
On messages from aliens, what an asteroid impact on the Moon might look like, the opening of a new neutrino observatory, and the tenth flight of…
Sep 3
•
Alastair Williams
23
August 2025
The Week in Space and Physics: Exoplanets, Comets, and Black Holes
On habitable exoplanets, the prospects for exploring an interstellar comet, the earliest black hole, and a strange supernova.
Aug 19
•
Alastair Williams
25
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.
Jul 31
•
Alastair Williams
30
5
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.
Jul 24
•
Alastair Williams
28
What Dark Energy Means For The End of Time
On the mysteries of dark energy and the fate of the universe
Jul 17
•
Alastair Williams
13
2
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
Jul 15
•
Alastair Williams
22
Hubble Is Getting Old. Should We Try to Save It?
On the future of the Hubble Space Telescope.
Jul 11
•
Alastair Williams
17
5
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