Cosmology

There's no way to Measure the Speed of Light in a Single Direction

A new study shows that not even cosmology can verify Einstein's assumption about the speed of light.

3 years ago

New Data Supports the Modified Gravity Explanation for Dark Matter, Much to the Surprise of the Researchers

A team of astronomers set out to disprove modified gravity, and ended up confirming it instead.

3 years ago

A new Type of Atomic Clock Uses Entangled Atoms. At Most, it Would be off by 100 Milliseconds Since the Beginning of the Universe

Scientists have made a clock so accurate you wouldn't have to reset it for billions of years.

3 years ago

Neutrinos Have Played a Huge Role in the Evolution of the Universe

Neutrinos are a form of dark matter, and they play a role in the evolution of the universe.

3 years ago

One of These Pictures Is the Brain, the Other is the Universe. Can You Tell Which is Which?

“Science is not only compatible with spirituality; it is a profound source of spirituality. When we recognize our place in…

3 years ago

Gravitational lenses could be the key to measuring the expansion rate of the Universe

Nailing down cosmic expansion could depend on distant quasars, and the time it takes their light to reach us when…

3 years ago

Matter makes up exactly 31.5±1.3% of the Universe

Weighing the universe is a tricky task, but a team of astronomers have used a clever technique to measure how…

4 years ago

Gravitational-Wave Lensing is Possible, but it’s Going to be Incredibly Difficult to Detect

Because gravitational waves travel at the speed of light, they can be lensed just as light waves are. But observing…

4 years ago

Colliding Neutron Stars Don’t Make Enough Gold to Explain What We See in the Universe

Much of the gold we find on Earth was created by colliding neutron stars, but astronomers now know gold must…

4 years ago

New Simulation Shows Exactly What Dark Matter Would Look Like If We Could See It

A detailed simulation of dark matter finds that dark matter haloes form in a wide range of sizes.

4 years ago