While we can’t see inside a black hole, we can spot the intensely bright glowing disc that surrounds one. Now, we might better understand why these discs appear to ‘twinkle’.
Discover how a picture of the sky can become a symphony.
Chandra X-ray Observatory
Since ancient times, the stars have been set to music. Modern technology now enables scientists to convert images of space into real compositions.
Nothing is harder to find than you might think.
3D visualisation of gravitational waves produced by two orbiting black holes.
To understand this question, we need to travel back in time.
The Carina star-forming region imaged by the JWST.
A year on since the historic launch of the most powerful infrared telescope in human history, we admire and explore some of the best images it delivered in 2022.
The James Webb Space Telescope is providing astronomers with images and data that reveal secrets from the earliest era of the universe.
It has been one year since the launch of the James Webb Space Telescope and six months since the first pictures were released. Astronomers are already learning unexpected things about the early universe.
Astronomers have unpacked the mystery of how one star’s death created the nebula NGC3132 – never before seen in such detail.
Many galaxies are too faint or small for us to observe easily – but science can help us work it out.
Thousands of galaxies seen by the James Webb Space Telescope.
The theory of gravity may need to be altered.
Spiral galaxies like M100, pictured here, may hold answers about the nature of dark matter.
NASA Spitzer Space Telescope/NASA/JPL-Caltech
A comparison of star-forming galaxies suggests, surprisingly, that dark matter and visible matter do interact – taking us closer to understanding what keeps the galaxies together.
James Webb has peered into the distant Universe.
James Webb has spotted extremely distant galaxies formed soon after the Big Bang, but are they old or young? Or is this the wrong question to ask?
Regular matter makes up just one-sixth of all the matter in the universe. What would it mean to finally understand what makes up the rest?
Measuring the mass of W bosons took 10 years – and the result was not what physicists expected.
PM Images/Digital Vision via Getty Images
A decadelong experiment produced the most accurate measurement yet of the mass of W bosons. These particles are responsible for the weak force, and the result is more evidence for undiscovered physics.
Some of the MeerKAT’s 64 dishes, which astronomers use to collect huge amounts of data.
© South African Radio Astronomy Observatory (SARAO)
Complementary science will be at the heart of the Square Kilometre Array.
Mathematics is the language of the universe.
In the absence of mathematical explanations, the universe would be irrational rather than unpredictable.
Scientists have come up with a number of theories about the multiverse.
The evolution of the cosmos after the Big Bang.
Some argue the Big Bang was a rebirth rather than a birth.
James Webb Space Telescope mirrors undergoing cryogenic testing.
JSWT may be able to discover signs of life on planets around other stars.
Plus, the tactics the food industry is using to boost sales of ultra-processed foods in middle-income countries. Listen to The Conversation Weekly.
Hubble took pictures of the oldest galaxies it could – seen here – but the James Webb Space Telescope can go back much farther in time.
The James Webb Space Telescope is set to launch into orbit in December 2021. Its mission is to search for the first light to ever shine in the universe.