Why do astronomers believe there's dark matter when it cannot be directly detected? Let's look at the evidence, and see what dark matter's presence means for our universe.
If we want an improved theory of particle physics, understanding neutrino masses is key.
A spinning black hole is pumping vast amounts of energy back into the surrounding universe, but something is causing the jets that transport that energy to wobble very rapidly.
Astronomers say they have "seen what we thought was unseeable" in releasing the first image of a supermassive black hole. So how did we get to this historic observation?
Apollo 8 was the moment that humanity realised a dream conceived in our cultural imagination over two millennia ago.
Forget about dark matter and dark energy, new research suggests that the existence of 'dark fluid' may solve some of the biggest mysteries in physics.
Astronomers are voting to rename one of the laws of physics. The voting may have far-reaching effects leading to renaming of other laws and giving 'forgotten' scientists due credit.
A podcast all about nothing. From the importance of doing nothing to the ill-effects of time spent in solitary confinement and what nothing means in space.
From a mysterious energy of empty space to parallel universes, cosmology's view of 'nothing' is anything but boring.
New observations show we don't really understand the universe's expansion.
New research on parallel universes forces cosmologists to come to an uncomfortable conclusion.
With a little bit of knowledge and a few pieces of equipment you too can look at the night sky and see it as a cosmologist does.
We may not live in an infinite 'multiverse' of parallel universes after all.
Hawking wasn't able to give his students a gentle introduction, but he did provide a lot of inspiration and support.
The famous cosmologist was closely identified with black holes due to his revolutionary theoretical work explaining some of their mysterious properties.
Stephen Hawking thought a form of string theory could be our best bet for a 'theory of everything'.
Stephen Hawking inspired people with his work on black holes and other mysteries of the universe. Many were quick to pay tribute to the theoretical physicist who died today in the UK, aged 76.
Hawking's most famous book, A Brief History of Time, sold 10 million copies and was translated into 40 languages, skyrocketing to the top of the bestseller lists in the US and UK.
Strangely behaving galaxies force scientists to rethink whether the universe really is uniform.
Cosmologists who were hoping to be the next Einstein have had to bin their theories.