So, this year you are going to give yourself the shiny telescope you have been wanting for the last two or three years. You have never owned a telescope before but having re-prioritized your budget, […]
Speed of Light The Speed of Light is around 186,000 miles/sec (299,792 km/sec), or around 671 million miles/hour (1.07 billion km/hour), meaning light travels a distance of about 5.88 trillion miles (9.5 trillion km) over […]
So you are reading a post or article about a celestial object, and you notice that the distance to the object stated in the post or article is different from the same value stated for […]
If you were look up at the position of the stars on any particular day of the year from the same location on Earth, and compared them to the same day a year earlier, you […]
The night sky is filled with stars of different colors that astronomers rank in order of their luminosity, the brightest of which is Sirius in Canis Major, a blue-white star 8.611 light years distant with […]
Introduction In ancient Greece, early scientists such as Thales of Miletus (624-546 BC) first started to suspect that the Sun was not the deity Helios (Apollo) driving his chariot around the Earth, but was instead […]
In astronomy, the magnitude of a star refers to its measure of brightness, and while absolute magnitude relates to the star’s intrinsic brightness, apparent magnitude, on the other hand, is a way of measuring how […]
We’ve all seen sci-fi movies and read books where it’s revealed that visitors from another world were responsible for sparking life on Earth. But, would they theoretically have been able to spread life to our […]
In ancient times, astronomers were able to distinguish between those stars which seemed to maintain a fixed position relative to one another, and the so-called wandering stars which changed their positions in the sky slightly […]
In science fiction movies, we see crews being frozen in cryogenic chambers so that they can make long trips across the universe. The crew being placed in an induced state of hibernation at the start […]
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