As I complete this post, it's completely dark outside and it's only 5 o'clock in the afternoon. Today is 14 December, and most people I come across think that it will continue to get dark earlier and earlier in the afternoons until 21 December, the shortest day of the year (at least for those of us… Continue reading The evenings are drawing out already.
This an update to my original post from 4 December. In a press release today the Japanese space agency JAXA confirmed that the smaller rocket motors had fired as planned and the Akatsuki is now in orbit round Venus. The announcement (http://global.jaxa.jp/press/2015/12/20151207_akatsuki.html) went on to say: "The orbiter is now in good health. We are… Continue reading Akatsuki – a second chance – Updated (7 Dec 2015)
On 7 December 2010, after a six month journey, the Japanese spacecraft Akatsuki (named after the Japanese word for dawn) arrived at Venus after a six month journey. It was only the second spacecraft launched since 1989 to visit the Earth's sister planet and, if it had succeeded in orbiting Venus, it would have had… Continue reading Akatsuki – a second chance – 7 December 2015
This post, the latest in my series about cosmology, talks about the Steady State theory. This is an elegant alternative theory to the Big Bang, which was very popular among astronomers in the 1950s, but is now obsolete. What is the Steady State Theory? The Big Bang theory states that the Universe originated from an… Continue reading The Steady State Theory
This post, which is the latest in my series on cosmology, is about the ultimate fate of the Universe, a subject which has engaged scientists, philosophers and religious leaders for centuries. There are many possible endings to the Universe, but the outline I will present here, which is sometimes called "The Big Freeze", is the most commonly held… Continue reading Ultimate Fate of the Universe.