Your phone can double as a digital measuring tape. Here is a simple guide on how to use your phone’s built-in AR measuring ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

Black holes are notoriously difficult to spot unless they are active, and one type of activity is the destruction of a star, ...

I want to see those 3D models of merging black holes.

Astronomers capture the twinkle of a distant quasar, RX J1131, and reveal the secret size of a black hole's fiery corona.

An ultramassive black hole so huge it could swallow 30 billion suns has emerged from the cosmic background, revealed not by ...