3D visualisation of gravitational waves produced by two orbiting black holes.
To understand this question, we need to travel back in time.
When two neutron stars merge and create a black hole, they produce a powerful blast of gamma rays.
A. Simonnet (Sonoma State Univ.) and NASA’s Goddard Space Flight Center
Gamma-ray bursts occur when a massive star explodes or when two neutron stars merge. A newly discovered burst has puzzled astronomers, as it lasted much longer than astronomers would have expected.
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.
A new particle accelerator at Michigan State University is set to discover thousands of never-before-seen isotopes.
Facility for Rare Isotope Beams
A new particle accelerator has just begun operation. It is the most powerful accelerator of its kind on Earth and will allow physicists to study some of the rarest matter in the universe.
Thousands of galaxies seen by the James Webb Space Telescope.
The theory of gravity may need to be altered.
NASA / ESA / CSA / STScI / JPL / Caltech
The binary star WR140 is surrounded by an astonishing array of nested shells of dust swirling into space.
Solutions to Einstein’s famous equations back in the 20th century describe ‘wormholes,’ or tunnels through space-time.
Mark Garlick/Science Photo Library via GettyImages
An astrophysicist explains what wormholes are and how these theoretical space-time tunnels have popped up in the solutions to a set of decadesold equations.
VFTS 243 is a binary system of a large, hot blue star and a black hole orbiting each other, as seen in this animation.
Astronomers have discovered the first dormant black hole outside of the Milky Way. These black holes are not absorbing matter from a nearby star, making them incredibly hard to find.
Why is the universe 13.8 billion years old, but 93 billion light-years across? It’s all about how light travels through the cosmos.
This cluster of galaxies, called Stephan’s Quintet, is a composite image produced from two cameras aboard the James Webb Space Telescope.
NASA released five new images from the James Webb Space Telescope, revealing incredible details of ancient galaxies, stars and the presence of water in the atmosphere of a distant planet.
The mirror on the James Webb Space Telescope is fully aligned and producing incredibly sharp images, like this test image of a star.
NASA/STScI via Flickr
It has taken eight months to test and calibrate all of the instruments and modes of the James Webb Space Telescope. A scientist on the team explains what it took to get Webb up and running.
Researchers used a radio telescope in New Mexico to study a particularly interesting fast radio burst.
Astronomers studying fast radio bursts recently discovered one that repeats, has a persistent radio signal and originated in a galaxy much closer than it should have.
This image shows Sagittarius A*, the black hole at the center of the Milky Way galaxy.
Sagittarius A* is a massive black hole at the center of the Milky Way. Now that astronomers have imaged it, they can begin to learn more about black holes within other galaxies across the universe.
The Hubble Space Telescope was born from a previous decadal survey. What leaps forward will come from this one?
The astronomy and astrophysics decadal survey for the 2020s lays out plans to search for life on distant planets, understand the formation of galaxies and solve deep mysteries of physics.
Some stars travel at high speeds through the universe and sometimes leave spectacular clouds of dust and gas in their wake.
NASA, ESA and R. Sahai (NASA's Jet Propulsion Laboratory)
Hypervelocity stars were discovered only 15 years ago and are the closest things in existence to real shooting stars. They travel at millions of miles per hour, so fast that they can escape from galaxies.
An artist’s impression of the Double Pulsar system in which the two pulsars orbit each other every 2.5 hours and send out high-energy beams that sweep across the sky.
Image credit: John Rowe Animations/CSIRO
Astronomers watched a pair of pulsars for 16 years to test the theory of general relativity, which has stood unchallenged for over a century.
New technologies have enabled us to learn more about black holes.
Advanced technologies and the information they collect have revealed how black holes form and behave.
There’s a lot we don’t know about galaxies.
We have to look back to the Big Bang to find out.
The planet Saturn.
Saturn, Jupiter, Neptune and Uranus all have rings.
It can get very cold in space.