A total eclipse that travelled the full width of Australia in 1922 offered astronomers the chance to confirm Einstein’s theory of general relativity - and for the community to enjoy a rare spectacle.
Astronomers watched a pair of pulsars for 16 years to test the theory of general relativity, which has stood unchallenged for over a century.
Advanced technologies and the information they collect have revealed how black holes form and behave.
Energy isn’t really made of anything else. It’s a kind of capacity to do things
Such a mission could be developed soon, allowing astrophysicists to take selfies of the solar system and use the Sun’s gravity as a lens to peer deep into space.
In trials teaching Einsteinian physics in schools, our most astonishing discovery was that children were not astonished: they just took the ideas in their stride.
Gravity is something every person on Earth intuitively understands: It is what keeps you on the ground. But how come gravity pulls down, rather than pushes up? Einstein came up with the answer.
A century after publishing major papers in theoretical mathematics, German-born Emmy Noether continues to challenge and inspire mathematicians with her story and mathematical legacy.
Einstein was awarded a Nobel prize for his explanation for how light can be described as being made up of individual particles of energy under certain conditions.
We first encountered the letter in 2019, when a reader shared it with us. In it, Einstein discusses bees, birds and whether new physics principles could come from studying animal senses.
If humanity wants to travel between stars, people are going to need to travel faster than light. New research suggests that it might be possible to build warp drives and beat the galactic speed limit.
If we want real public understanding of new findings, we must also open up peer review.
The element was discovered in the fallout of a thermonuclear blast.
Quantum mechanics is strange. A philosopher explains just how strange, and what it means for reality.
Field theory describes the universe as energy flowing along unending lines. With this perspective, it is possible to define a new fundamental building block of matter.
The h-index has become an indicator of quality for many researchers and may influence the allocation of research funds. But some question its value.
There are two types of time travel: going back in time and going forward in time. And remarkably, people can feel time at different rates - but usually don’t notice it.
Albert Einstein may have been the ultimate example of a visionary genius, but that did not stop him from twice losing his way due to beliefs that were perhaps not so scientific.
One of Einstein’s weirder predictions is that massive, spinning objects exert a drag on space-time itself. Now an orbiting pair of unusual stars has revealed this effect in action.
Scientists turned Earth into one giant telescope to capture the uncapturable.