The cosmological constant problem

From colliding galaxies to supermassive black holes, we take a look at some of the strangest sights in the universe

The nature of time is one of the most profound and longstanding problems in physics – one that no one can agree on. From our perspective, time seems to steadily progress forward with each tick of the

Ten years ago, on 14 September 2015, a new window on the Universe was opened, giving us a novel way of studying exotic, high-energy objects such as black holes and neutron stars: the first direct dete

If there’s one thing I love, it’s a misnomer. Shooting stars, planetary nebulae, guinea pigs… none of them does what it says on the tin. Another great example is the term ‘physical constant’. These ar

Astronomers love a challenge. They place their observatories on the highest mountains, in the driest deserts, on the coldest ice shelves, beneath the deepest oceans, in orbit around Earth and the Sun,

Get sucked into an astronomical mystery as we get in a spin with the universe’s heaviest objects.