cepheid variables
Mapping the Milky Way’s Dark Matter Halo
Anytime astronomers talk of mapping the Milky Way I am always reminded how tricky the study of the Universe can…
Cepheid Variables are the Bedrock of the Cosmic Distance Ladder. Astronomers are Trying to Understand them Better
One of the most fundamental questions astronomers ask about an object is "What's its distance?" For very faraway objects, they…
Webb Continues to Confirm That Universe is Behaving Strangely
Over a century ago, astronomers Edwin Hubble and Georges Lemaitre independently discovered that the Universe was expanding. Since then, scientists…
Astronomers Rule Out One Explanation for the Hubble Tension
Astronomers measure the Universe's expansion rate and have found a discrepancy between the speed nearby versus the speed measured in…
Polaris is the Closest, Brightest Cepheid Variable. Very Recently, Something Changed.
A new study has revealed that Polaris' pulsating behavior may be caused by its binary companion, resolving a long-standing mystery…
JWST is the Perfect Machine to Resolve the Hubble Tension
Over the last decade, various measurements have disagreed over the rate that the Universe is expanding. Astronomers use Cepheid variables…
Supernovae Were Discovered in all These Galaxies
The Hubble space telescope has provided some of the most spectacular astronomical pictures ever taken. Some of them have even…
Black Hole-Neutron Star Collisions Could Finally Settle the Different Measurements Over the Expansion Rate of the Universe
If you've been following developments in astronomy over the last few years, you may have heard about the so-called "crisis…
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…