Author Archives: dromalley

The Λ-CDM Model

Posted on March 8, 2023 by dromalley

As this blog post presents me with much more freedom in topic, I’ve decided to discuss the most widely accepted theory for the origin and evolution of our universe: the Λ-CDM model. This model, named for the cosmological constant Λ which governs the accelerating expansion of space-time and for Cold Dark Matter, lays out a […] Continue reading →

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The Imaginary Planet

Posted on March 7, 2023 by dromalley

While the five planets visible to the naked eye have been known for almost all of astronomy’s history, it was not until the discovery of Uranus in 1781 by Sir William Herschel that astronomers began searching for other planets in our Solar System. After Neptune was discovered in 1846, astronomers began turning their telescopes towards […] Continue reading →

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The Tools of Discovery

Posted on February 13, 2023 by dromalley

For my second blog post, I’ve decided to provide an overview of a few of the most advanced telescopes both on and around the world which have allowed astronomers to peer into the distant mysteries of our universe and uncover more about its nature. First, we will examine some of the most advance ground based […] Continue reading →

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Historical Astronomers in Context: Kepler

Posted on February 2, 2023 by dromalley

Johannes Kepler was a German astronomer who was born on December 27 1571 and died 15th of November 1630. During Kepler’s lifetime, one major event was the Bohemian Revolt in 1618, kickstarted by the Third Defenestration of Prague, which launched the Holy Roman Empire into chaos and began the thirty years war. This war caused […] Continue reading →

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Scale and Travel Times

Posted on January 23, 2023 by dromalley

At this very moment, the Voyager 1 spacecraft is hurtling through space at about 61,500 km/h each and every hour, carrying it ever further from our Solar system which it left 18 years ago. But despite this staggering speed, it would still take Voyager more than 75,000 years to reach the nearest star, Alpha Centauri. […] Continue reading →

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