Hubble constant
A New Test Confirms Dark Energy and the Expansion of the Universe
Our measurements of dark energy give contradictory results. A new study confirms dark energy, but suggests it is more strange…
There’s a new method to measure the expansion rate of the Universe, but it doesn’t resolve the Crisis in Cosmology
In a recent post I wrote about a study that argued dark energy isn't needed to explain the redshifts of…
Quasars with a Double-Image Gravitational Lens Could Help Finally Figure out how Fast the Universe is Expanding
How fast is the Universe expanding? That's a question that astronomers haven't been able to answer accurately. They have a…
Gravitational waves were only recently observed, and now astronomers are already thinking of ways to use them: like accurately measuring the expansion rate of the Universe
Neutron stars scream in waves of spacetime when they die, and astronomers have outlined a plan to use their gravitational …
How Fast is the Universe Expanding? Hubble and Gaia Team Up to Conduct the Most Accurate Measurements to Date
A new study used data from both Hubble and Gaia in order to obtain the most precise measurements of cosmic…
Precise New Measurements From Hubble Confirm the Accelerating Expansion of the Universe. Still no Idea Why it’s Happening
A new survey performed by the SHoES team using Hubble has confirmed that the Universe is in an accelerated rate…
At the Largest Scales, Our Milky Way Galaxy is in the Middle of Nowhere
A presentation at the June 6th AAS meeting confirms that our galaxy is inside an enormous cosmic void, the largest…
What are Cepheid Variables?
Discovered in the late 18th century, Cepheid Variable stars have become an important tool for measuring the size of the…
The Hubble Constant Just Got Constantier
A team of astronomers using the Hubble telescope have found that the Universe is expanding more rapidly than thought.
How Are Galaxies Moving Away Faster Than Light?
So, how can galaxies be traveling faster than the speed of light when nothing can travel faster than light? I’m…