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Space

The rise, the fall and the rebound of cyclic cosmology

Cyclic cosmology, or the big bounce, is the idea that the universe will eventually crunch back together and then go through another big bang. Columnist Leah Crane finds that, appropriately, it’s coming back

Comment

Scientist of the Institute for Safety Problems of Nuclear Power Plants of the NAS of Ukraine in the Chernobyl Exclusion Zone, Ukraine, December 15, 2025. Anatoly Doroshenko

Physics

The man who crawls into the perilous heart of the Chernobyl reactor

Features

Chernobyl 2022

Physics

Exclusive report: Inside Chernobyl, 40 years after nuclear disaster

Features

Dust rising from combine during crop harvesting, no-till technology professional occupation.

Environment

The Iran war is exposing the huge risks in our food system

Leader

Environment

Plug-in solar is coming – how dangerous is it and is it worth it?

News

The bombshell results that demand a new theory of the universe

Space

The bombshell results that demand a new theory of the universe

Features

Image from a MAYA collaboration numerical relativity simulation of a neutron star-black hole (NSBH) binary merger, showing the disruption of the neutron star. Credit: Deborah Ferguson (UT Austin), Bhavesh Khamesra (Georgia Tech), and Karan Jani (Vanderbilt University).

Space

A bizarre type of black hole could solve three cosmic mysteries in one

Features

Crisis in cosmology: If we’ve got dark energy wrong, what could it be?

Space

Crisis in cosmology: If we’ve got dark energy wrong, what could it be?

Features

Environment

Is geothermal energy on the cusp of a worldwide renaissance?

Analysis

It’s your perception of sleep that’s making you feel tired all day

Mind

It’s your perception of sleep that’s making you feel tired all day

How we feel about a night’s sleep can have a bigger impact on mood and grogginess than actual hours of rest. Here’s how to change your mindset to feel more energised

Features

Physics

The mystery of nuclear 'magic numbers' has finally been resolved

News

Environment

This state’s power prices are plummeting as it nears 100% renewables

News

Environment

Old EV batteries could meet most of China's energy storage needs

News

Video

Does dark energy stem from a thermodynamic theory of space-time?

Video