Imagine sitting outside on a beautiful night, gazing up at the sky. A full moon fills the sky with its dazzling light. What a sight it would be if you suddenly saw the full moon disappear. The answer to that question is the video taken during the 2011 total lunar eclipse in Tajikistan. During the lunar eclipse, the Earth passes between the Sun and the Moon, causing the Moon to darken dramatically, or […]
A long time ago, it seems like a long time ago, I wrote about the Kardashev Scale (Kardashev Scale - Types and Civilization). There, I mentioned that a Class II civilization could build a Dyson Sphere to meet its energy needs, and that I would write a more detailed article later. Well, I guess it's about time. According to the Kardashev Scale, a Class II civilization would need that much energy […]
The Royal Observatory Greenwich and the BBC's Sky At Night programme hold an annual Astronomy Photo of the Year competition. Spectacular images were submitted for 2014, but only a few won the Best of the Year award. The results of the competition have been announced, and the images are stunning.
Hello everyone after a wonderful weekend. As the title suggests, I should say this will be an article about the dimensions of the visible universe, but no, it won't. I've written a detailed article about it. You can find it here (The Universe Is Big, But How Big Is It? The Observable and Unobservable Universe).
The moons pictured are among the most discussed and intriguing in the solar system for astrobiologists. While not the planet they orbit, they are potentially habitable. During the Galileo lecture on Jupiter, the global subsurface ocean of Europa and the inland seas of Ganymede were discovered. On Saturn, the Cassini spacecraft discovered the presence of hot underground waters on Enceladus, […]
We know that due to the expansion of the universe, galaxies are moving away from each other, and the farther they are from us, the faster they are moving away. In fact, we also know that after a certain point, even at normal speeds, they are moving away from light due to the expansion. Therefore, since light from a large portion of the universe never reaches us, we can observe a portion of it we call the visible universe. However, not all galaxies are moving away from each other. There are clusters of galaxies […]
