Axions may or may not exist - but we're not just making things up
15 May 2019
Everything theoretical physicists do is speculative, and likely wrong, except for the things we get right, says Chanda Prescod-Weinstein
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This week's new questions
15 May 2019
Why is it that the same foods or drinks taste pleasant to some people and horrible to others?
This week's new questions
15 May 2019
What causes the fresh smell we experience just before the onset of a storm or shower of rain, which is especially noticeable after an extended dry spell?
Does your fringe grow faster than the hair on the rest of your head?
15 May 2019
Is there any difference in hair growth rates on your head, or do you just notice it more when your fringe gets longer? A long-haired reader responds
Kissed by a human or licked by an animal: which has more disease risk?
15 May 2019
Are you more likely to pick up a disease from a kiss or letting an animal lick your face? Readers give their opinions
Has all the hardware sent into space affected Earth’s gravity?
15 May 2019
We’ve launched a lot of spacecraft, reducing the mass of the planet. Does that affect the planet’s gravity? Our readers have the answer
Deadly air pollution illuminated in beautiful long-exposure photograph
15 May 2019
These are no delicate fireflies but air pollution levels outside Port Talbot steelworks, South Wales, captured by the novel techniques of a science-art project
The story behind immunotherapy’s innovative cellular voyage
15 May 2019
When a patient’s cells are modified to attack cancer, they undergo a complex journey
Liana Finck cartoon
15 May 2019
This week's cartoon - 18 May 2019
Selfish motives must not imperil the new space age
15 May 2019
As Elon Musk, Jeff Bezos and Donald Trump rush to return people to space, we need to make sure nationalism and rivalries don’t mortgage the solar system’s future
