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Scientists may have found a way to answer one of the deepest questions of the universe: just how fast it is expanding.
The rate of expansion, known as the Hubble constant, is at the foundation of much of our knowledge of the cosmos. But, strangely, we do not know for sure what it actually is, since the two central ways of measuring it disagree with each other.
That in turn has led to concern that our understanding of the universe might be wrong in a fundamental way, as well as having difficulty calculating the rate of expansion itself.
Leitrim Guardian 2021 - the most interesting one yet
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Circumstances were to ordain that this correspondent has time on his hands so he was delighted to have the 2021 Leitrim Guardian to read through.
I believe it is the most interesting of all the Guardians. There is wonderful variety and it takes one into most communities in the county. There are quite a few articles and snippets that will be of particular interest for Drumkeerin readers.
Our Editor and Creevelea resident, Blaithin Gallagher, has captured the amazement, the anxiety and fears that the locals felt when the mudslide swept down onto the lowlands.