A new study has revealed that Polaris' pulsating behavior may be caused by its binary companion, resolving a long-standing mystery…
Over the last decade, various measurements have disagreed over the rate that the Universe is expanding. Astronomers use Cepheid variables…
The Hubble space telescope has provided some of the most spectacular astronomical pictures ever taken. Some of them have even…
If you've been following developments in astronomy over the last few years, you may have heard about the so-called "crisis…
A new study used data from both Hubble and Gaia in order to obtain the most precise measurements of cosmic…
A new survey performed by the SHoES team using Hubble has confirmed that the Universe is in an accelerated rate…
Located in the northern hemisphere is Cepheus, one of the 48 constellations included by Ptolemy in his classic work, The…
Discovered in the late 18th century, Cepheid Variable stars have become an important tool for measuring the size of the…
This star is X light-years away, that galaxy is X million light-years away. That beginning the Universe is X billion…
A new kind of variable star -- 36 of that type, in fact -- has been found in a single…