�鶹��ý

Skip to content

Gravity

Definition

Gravity

Gravity is the fundamental force that determines how massive objects interact.

Why it's better to fall into a big black hole, and other bizarre facts

Space

Why it's better to fall into a big black hole, and other bizarre facts

Features

Astronomical time can help us put lockdown into perspective

Space

Astronomical time can help us put lockdown into perspective

Comment

hands artwork

Physics

In the quantum realm, cause doesn’t necessarily come before effect

Features

clock

Humans

William Gibson's Agency drops time-travel paradoxes for big questions

Culture

Doctor Strange

Physics

Time travel without paradoxes is possible with many parallel timelines

News

Time travel and black holes: The weird promise of Einstein’s universe

Video

Time travel and black holes: The weird promise of Einstein’s universe

Video

Illustration of a supermassive black hole

Space

Some planets may orbit a supermassive black hole instead of a star

News

blurred man

Physics

The time paradox: How your brain creates the fourth dimension

Features

Albert Einstein smoking a pip

People in Science

Albert Einstein

Albert Einstein is arguably the most influential scientist of the 20th century. His general theory of relativity changed our understanding of space and time, becoming one of the two pillars of modern physics – the other being quantum mechanics.

Definition

General relativity

Definition

Second law of thermodynamics

Definition

Black holes

Earth

Underland is a profound journey into the mirror world of the dead

Culture