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Finely ground coffee is dispensed into an espresso filter

Physics

Unevenly packed coffee to blame for weak espresso, say mathematicians

A mathematical model shows that even small inconsistencies in how coffee is packed into an espresso machine can lead to weaker brews and watery flavour

News

Environment

Lab-grown meat could be 25 times worse for the climate than beef

News

A dense collection of stars covers the view. Towards the centre the stars become even more dense in a circular region, and also more blue. Around the edges there are some redder foreground stars, and many small stars in the background.

Physics

Why darkness between stars reveals more about the universe than light

News

NEW CLOUDS ABOVE US The modern world relies on satellites for its communications and commerce. While mostly invisible to us as we go about out daily lives, our entire modern way of living ? both socially and professionally ? is intimately linked with the orbital space around the Earth. How we treat this extraterrestrial environment will determine how much we can rely on it in the future. ?In this view of Greenwich, London, you?ve got examples of what?s in space. I photographed about 300 artefacts ranging from satellites to rocket bodies, satellite parts, solar panels, all the way down to the screws and a glove to show what?s up there. The photography was done over a one year period, across North America, Europe and the UK. I wanted to show this from a human perspective ? from the ground looking up. I chose Greenwich because of its history of astronomy and because from there you can see the financial district of London to highlight the modern world?s connection to the satellites that circle Earth.? Max Alexander

Comment

Space debris problem highlighted in new series of photographs

Regulars

How maths reveals the best time to add milk for hotter tea

Mathematics

How maths reveals the best time to add milk for hotter tea

Regulars

Space

Alien messages responding to NASA signals could reach us by 2029

News

Physics

We finally know why bubbles rise in a straight line in champagne

News

Why we must inspire people with the magic of condensed matter physics

Physics

Why we must inspire people with the magic of condensed matter physics

Comment

The fermentation of beer

Technology

Tiny yeast-filled robots help brew beer quickly and more efficiently

News

Life

Was DNA pioneer Rosalind Franklin really a victim of scientific theft?

It is widely thought that Rosalind Franklin was a victim whose work on DNA was stolen, but a letter and unpublished magazine story add to the evidence that this view is misleading

Analysis

Space

JWST has spotted the most distant galaxy cluster ever seen

News

Space

What was the universe's first second like? These particles can tell us

Features

Space

Your essential guide to the many breathtaking wonders of the universe

Features

Humans

What is really going on when we microwave our food?

Regulars