Hawking's global warnings divided opinion but the world listened
14 March 2018
The physicist was also known for his outspoken views on existential issues such as climate change. They were part of being an icon, says Geraint Lewis
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Premium
Why 2018 is looking like it will be the year of the black hole
27 February 2018
Powerful telescopes are ready to reveal the vast black hole at the heart of our galaxy in all its glory. This is a big moment for astronomy, says Geraint Lewis
The ugly, fractured reality of the cosmos deserves our attention
8 January 2018
A puzzling clash between perfection and imperfection in our universe is getting fresh attention. This great cosmological mystery merits it, says Geraint Lewis
No, aliens aren't lurking on the International Space Station
30 November 2017
History tells us that earthly contamination is by far the most likely explanation for “extraterrestrial” bacteria found on the ISS hull, says Geraint Lewis
Why Hawking's PhD thesis is now an internet-breaking inspiration
2 November 2017
Millions rushed to freely access Stephen Hawking's early musings when they went online. More of the same would help ignite young minds everywhere, says Geraint Lewis
Why our 'freakish' galaxy has got cosmologists seriously worried
19 October 2017
In the grand club of galaxies, the Milky Way is increasingly looking like an outlier. This is a looming challenge for cosmology, says Geraint Lewis
Nobel prizes would be better without all the fame and fortune
9 October 2017
A Nobel prize brings big money and celebrity status for a few, but that's at odds with modern, collaborative science done for the greater good, says Geraint Lewis
What a surprise – the end of the world has been delayed, again
25 September 2017
The planet Nibiru was meant to wipe us out on Saturday. Undeterred by a no-show, doomsday theorists are already peddling more nonsense, warns Geraint Lewis
Aliens slumbering for billions of years are out there – really?
25 July 2017
Trying to explain the Fermi paradox by invoking aliens that sleep for aeons is a speculative idea to be taken with a large pinch of salt, says Geraint Lewis
A fine-tuned universe may be controversial but can't be ignored
28 June 2017
The suggestion that our universe has physical laws and constants inexplicably just right for life is in the ascendant. Expect a heated debate, says Geraint Lewis
