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Cosmic microwave background

Definition

Cosmic microwave background

Cosmic microwave background is a sea of radiation that provides us with evidence for the big bang. The big bang is now orthodoxy, although without a theory than unifies general relativity with quantum theory, we’re stuck in explaining exactly what it was or why it happened.

Keele University

Environment

UK could use hydrogen instead of natural gas – if it can make enough

News

Technology

Working Hypothesis: From Finland’s climate action to a rival Chernobyl

News

Godzilla

Godzilla: King of the Monsters reveals our obsession with radiation

Culture

Second law of thermodynamics

Definition

Second law of thermodynamics

Technology

Working hypothesis: From Pokémon Sleep to David Camerson

Insight

Lise Meitner

People in Science

Lise Meitner

We use more energy as we get older

Environment

Older people use more energy - and it's not just because of wealth

News

A sponge

Physics

Artificial sponges could pull uranium from seawater for nuclear power

News

Iranian president Hassan Rouhani at a nuclear power plant

Physics

It may become impossible to tell if Iran starts making a nuclear bomb

US hostility to arms control treaties has put Iran back on a path to building nuclear weapons, and inspectors could be left blind if the deal collapses

Analysis

Environment

Humans have interfered with most of the world's greatest rivers

News

Technology

HBO's Chernobyl drama highlights the human cost of nuclear catastrophe

Culture

Environment

Seven charts that explain what net zero emissions means for the UK

News

Environment

Glaciers contain radioactive isotopes from nuclear tests and accidents

News