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Articles on General Relativity

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A portrait of Albert Einstein on a transformer station in St.Petersburg, Russia. (Shutterstock)

Why the h-index is a bogus measure of academic impact

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.
An artist’s impression of the path of star S2 as it passes very close to the supermassive black hole at the centre of the Milky Way. The very strong gravitational field causes the colour of the star to shift slightly to the red. (Size and colour exaggerated for clarity.) ESO/M. Kornmesser

Einstein’s theory of gravity tested by a star speeding past a supermassive black hole

Astronomers traced a single star as it passed close to the black hole at the centre of our galaxy, and detected the telltale signature of Einstein’s gravity in action.
How fast can quantum computing get? Research shows there’s a limit. Vladvm/Shutterstock.com

Quantum speed limit may put brakes on quantum computers

A future that continues to have increasingly fast computing depends on quantum physics – but research is showing that there are limits to how fast quantum computers can go.
The discovery of the year was the first detection of gravitational waves. LIGO/T. Pyle

2016: the year in space and astronomy

Colliding black holes to exploding spacecraft, 2016 was an incredible year for astrophysics.
Hi Juno, welcome to Jupiter. NASA/JPL

2016, the year that was: Science + Technology

From the discovery of gravitational waves, to the Pokémon Go phenomenon to the Census debacle, it's been a big year in science and technology.

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