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A simulation of gravity showing curved space-time. The ball represents the sun and is resting on a sheet of plastic that stretches under its weight. The curved sheet of plastic demonstrates the way a gravity curves space.

Physics

The massive problem of trying to fully explain what mass actually is

I can take it as a given that people have an intuition for the meaning of mass, but traditional explanations can feel unsatisfactory. Even the standard model doesn't give us all the answers, says Chanda Prescod-Weinstein

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LONDON, ENGLAND - MAY 30: A pair of 1X androids are displayed at the International Conference on Robotics and Automation (ICRA) at ExCel on May 30, 2023 in London, England. The event is the IEEE Robotics and Automation Society's flagship conference and a forum for robotics researchers to present and discuss their work. (Photo by Leon Neal/Getty Images)

Technology

Robotics gets less attention than it should given its potential impact

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Technology

Bluesky is just another Twitter clone and that isn't a good thing

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Cheese Store at The Ethical Dairy

Environment

Why I can once again eat cheese with a clear conscience

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Milky Way. Night sky and silhouette of a standing man

Space

Questions I dread: How did the universe begin, and what is space-time?

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Urban red fox (Vulpes vulpes) wandering on top of brick wall spiked with broken glass on very early morning in residential gardens.; Shutterstock ID 1889796793; purchase_order: -; job: -; client: -; other: -

Life

When did animals like foxes first start living alongside people?

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D4A3HW Billboard in London Bridge advertising the Channel 4 series Black Mirror

Society

Why we shouldn't fill our minds with endless tales of dystopia

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2H56E72 Activists from Friends of the Earth during a demonstration calling for an end to all new oil and gas projects in the North Sea, starting with the proposed Cambo oil field, outside the UK Government's Cop26 hub during the Cop26 summit in Glasgow. Picture date: Sunday November 7, 2021.

Environment

How a campaign to keep fossil fuels underground is gaining traction

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How can we prove the world is really quantum mechanical?

Physics

How can we prove the world is really quantum mechanical?

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2F6N0XJ A shot of beautiful orchid garden in Thailand.

Life

What is so special about orchids and why are there so many?

Orchids seem unique in how they inspire such a devoted following, but why are these much-loved plants so diverse and widespread, wonders Penny Sarchet

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Technology

How I found a new home online at Mastodon, after giving up on Twitter

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Environment

Europe's first Wild River National Park is great, except for one thing

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Space

Why space scientists need science fiction

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Technology

Why we need to be wary of anthropomorphising chatbots

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