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Cosmology is a branch of physics that grapples with the big questions on the nature of our universe, including where it came from and what will happen to it next. At Live Science, we make this complex and sometimes mind-bending science accessible, explaining everything from the speed of light to the multiverse theory, and describing all of the wild theories about the universe.
Our expert writers and editors also break down new developments in the field, whether it's how "Dark sirens" could solve one of the greatest mysteries in cosmology or why the launch of the Euclid space telescope is groundbreaking, with the latest cosmology news, features and articles.
Discover more about cosmology
—5 fascinating facts about the Big Bang, the theory that defines the history of the universe
—The James Webb telescope has broken cosmology. Can it be fixed?
Latest about Cosmology
'The chances of you living 50 years are very small': Theoretical physicist explains why humanity likely won't survive to see all the forces unified
Interview Live Science spoke with Nobel prize-winning physicist David Gross, who recently received the $3 million Special Breakthrough Prize in Fundamental Physics, about the quest to unite all the forces and why humanity might not live to see a unified theory.
Largest-ever 3D map of the universe shows 47 million galaxies, from the Milky Way to 'cosmic noon' — Space photo of the week
The largest 3D map of the universe, created with data from the Dark Energy Spectroscopic Instrument, shows 47 million galaxies in stunning detail.
Our leading theory of dark matter may be wrong, huge new gravity study hints
New research using a space-time phenomenon predicted by Einstein presents evidence that the invisible backbone of the universe may be much "fuzzier" than we realized.
'Invisible scaffolding of the universe' revealed in ambitious new James Webb telescope images
A team of researchers using the James Webb Space Telescope has produced the most detailed map of dark matter to date.
Every major galaxy is speeding away from us, except one — and we finally know why
A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding toward us while our other neighbors are moving away from us.
Astronomers spot 'time-warped' supernovas whose light both has and hasn't reached Earth
Will two rare supernovas finally tell us how fast the universe is expanding? Perhaps, but we'll have to wait for it for them to 'reappear'.
Standard model of cosmology holds up in massive 6-year study of the universe
The six-year Dark Energy Survey has released its full results, showing that two leading models of cosmology are equally valid — but both fail to explain one key observation.
Our model of the universe is deeply flawed — unless space is actually a 'sticky' fluid
Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a new paper suggests.
