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| • Between 1979 and 1999 Pluto was closer than Neptune to the Sun. | • Blue stars are the hottest. | ||||||||||
31 May 2007
Read the full story for free here.] 29 May 2007 The lecture is being held in the Lindop Building, College Lane Campus, Hatfield, at 7.00pm. Light refreshments will be available from 6.30pm and a Reception, sponsored by Princeton University Press, to celebrate the launch of the book will follow the lecture. Copies of Stuart’s book will be available for purchase. This event is free, but please email d.crann@herts.ac.uk for tickets, or leave a message on 020 8457 2705. I look forward to seeing as many of my more local readers as possible. Sorry I haven’t been blogging much this last week or so, I’ve been working flat out on a number of things, most importantly my new book. More details next week, when the pace of work should return to more normal levels.18 May 2007 “Clark's style engages us immediately and holds us throughout. He portrays the science of the times as high drama in which rivalry between scientists was intense, severe, and, in many cases, personal. Not only will readers get a true feel for the science of the 19th century and the characters involved, but they'll learn a little solar science as well. This book will appeal to anyone interested in history and science, a great combination. … ”You can read the full review here. There is also a brief review by Dennis Lythgoe in the Deseret Morning News. Read that review here. 16 May 2007 When it comes to galaxies, astronomers have a lot in common with Victorian fathers. They have a pretty good idea of what is involved in their conception and they know what the end product looks like. But the actual birth itself is a total mystery. Using optical telescopes, astronomers can peer back through space to a time around 1 billion years after the big bang. Even at this early stage there are galaxies, not as fully grown as the ones today, but recognisable as galaxies nonetheless. To look back further in time means studying microwaves rather than light, and that's when we lose sight of galaxies altogether. Instead, we see a universal bath of radiation that carries the imprint of the way the universe looked just 300,000 years after the big bang. At that point in cosmic history, there were no galaxies - just rippling undulations in the density of... The complete article is 2254 words long and is available here. Also in the same issue of New Scientist, I have a news story: ‘Dark energy’ – the constant we can't live without The cosmological constant originated as a "fudge factor" that Einstein added to general relativity to square its predictions with a universe that he thought was static. He later disowned it, when it was realised that the universe is expanding, but with the discovery in the late 1990s that this expansion is accelerating, the cosmological constant came back into favour. In essence, the cosmological constant represents the "dark energy" of space-time that repulses gravity. There is one huge problem with it, though: the value for the cosmological constant predicted by particle physics is about 120 orders of magnitude greater than is consistent with the observed expansion of the universe. … The complete article is 513 words long and can be read on the web here but a subscription is required. 15 May 2007 Also the first reader’s reviews of The Sun Kings have appeared on amazon.com, and they are five-star rated too. Thank you Ralph G. Marantino and Josephine Clementine Pilgrim for your kind words, I’m thrilled you enjoyed the book so much. Read their reviews here, click on the customer reviews link under the title. 14 May 2007
Read the full story here for free.
11 May 2007 ”The judges said: “Geeky but not uncool,” Focus is an “absorbing, fascinating magazine designed with clarity and addressing so many topics which bug and niggle us. Focus’s achievements prove the magazine really has gone from rags to riches.” To read some of the stories I have written for Focus, pop over to my cover stories page. I have also had the pleasure of editing some of their features articles for them this past year. I would like to extend my personal congratulations to my good friends Paul, Sally and the rest of the BBC Focus team. Keep up the good work. 10 May 2007
Read the full story for free here 9 May 2007 Another great review of The Sun Kings has been published, this time in Publisher’s Weekly. Here are the highlights: “In this well-researched and very well-written book, Clark tells the embattled, little-known history of modern astronomy, a spry tale full of intrigue, jealousy, spite, dedication and perseverance. Peopled with a large, colorful cast, author and editor Clark delivers a tale rich in conflict and passion… Clark's parade of historical characters dramatize the narrative nicely… making this a fascinating work....” Read the review in full here 8 May 2007 Barnes and Noble in-store promotion for The Sun Kings
You can download the programme as a podcast here. 7 May 2007 You can join the 50,000 other listeners who download the weekly podcast by clicking here. My interview starts at 25:50. Be warned, however, that the podcast contains spoilers. If you listen to it, you will hear me give away some of the plot’s twists, turns and surprises. Before my interview, you’ll also hear a fascinating discussion about the newly discovered, potentially habitable planet Gliese 581c. When you’ve finished listening to this particular episode, go back through their archives and listen to the previous programmes. Each gives a special insight into an aspect of answering the question: Is there life elsewhere in the Universe? 6 May 2007 5 May 2007 The May 2007 issue of Natural History magazine contains a nice review of The Sun Kings by Laurence A. Marschall. What’s so nice about this review is that Marschall is not only an excellent science writer, but also professor of physics at Gettysburg College, PA. You can read the review here. More Sun Kings good news: the early demand for the book has taken Amazon.com by surprise. It sold out today but more stocks are on the way. So, don’t stop ordering. Amazon.com are offering a 24 percent discount. In the UK, click here. In the US, click here. 4 May 2007 3 May 2007 EUROPEAN planet hunters are stealing a march on their American rivals. After last week's discovery of a "habitable" extrasolar planet the mass of five Earths - the smallest yet found - European astronomers have had more good news. Their new space telescope, called COROT, is proving 10 times as sensitive as expected. The spacecraft seems sharp enough to detect planets as small as Earth, a task widely thought impossible in advance of the launch of NASA's Kepler telescope in October 2008. Read the full story for free here. Has SOHO ended a 30-year quest for solar ripples?
Read the full story for free here. 2 May 2007
spiked is an internet-based magazine for free-thinkers. Here’s how they described the survey: ’What’s the Greatest Innovation?’ is a survey of key thinkers in science, technology and medicine, conducted by spiked in collaboration with the research-based pharmaceutical company Pfizer. Each contributor was asked to identify what he or she sees as the greatest innovation in his or her field. More than a hundred experts and authorities, including half-a-dozen Nobel Laureates, have responded. The aim of the online survey is to highlight some of the many gains of human ingenuity, and to put the current discussion of innovation into a historical context. What did I claim was the greatest innovation? Find out here. Read the rest of the entries here. There will also be a debate on this subject on 6 June 2007. Find out more about the event here. I’ll be attending, so come up and say hello. 1 May 2007 29 April 2007
Read the full (if brief) story for free here. 28 April 2007 26 April 2007 Earth sits between two worlds that have been devastated by climate catastrophes. In the effort to combat global warming, our neighbours can provide valuable insights into the way climate catastrophes affect planets.
Read the full story for free here Designing for Fire On 25 July 2006, a derelict flat in Dalmarnock caught fire. The blaze started in the lounge and spread to the surrounding rooms before it was extinguished by the fire services. The fire was no accident. Neither was it a crime. It was a scientific experiment… Read the full story for free here. The story ties in with the BBC Horizon television programme Skyscraper Fire Fighters. 25 April 2007 Astronomers have discovered the most Earth-like planet outside our Solar System to date, an exoplanet with a radius only 50% larger than the Earth and capable of having liquid water. Using the ESO 3.6-m telescope, a team of Swiss, French and Portuguese scientists discovered a super-Earth about 5 times the mass of the Earth that orbits a red dwarf, already known to harbour a Neptune-mass planet. The astronomers have also strong evidence for the presence of a third planet with a mass about 8 Earth masses. Read the full press release here. 24 April 2007 Visit the page here. A Massive Explosion on the Sun The press release begins:
Read the full press release and watch the solar flare move here. 23 April 2007 Did William Herschel discover the rings of Uranus in the 18th century? Astronomers map out the dark matter in nine galaxies You can read all the other press releases here 21 April 2007 AFTER 40 years of planning and hundreds of millions of dollars, NASA announced last week the first results from the Gravity Probe B experiment, which was designed to measure how Earth warps the fabric of space-time. The results may have been scooped, though, by astronomers bouncing lasers off the moon decades ago.
The GPB team only reported a measurement of the geodetic effect. Team leader Francis Everitt of Stanford University in California says that the team has seen… The complete article is 637 words long and can be read on the web here but a subscription is required. 20 April 2007 Warm gas escaping from the clutches of enormous black holes could be the key to a form of intergalactic ‘pollution’ that made life possible, according to new results from ESA’s XMM-Newton space observatory, published today…
19 April 2007 16 April 2007 There's no need to invoke dark matter to explain why nearly 80 per cent of spiral galaxies have a bar of stars or dust running through them. A tweaked version of Newton's law of gravitation does the job better… Read the full story for free here. 12 April 2007
Read the full story for free here
4 April 2007 “During an unprecedented solar eruption last December, researchers at Cornell University confirmed solar radio bursts can have a serious impact on the Global Positioning System (GPS) and other communication technologies using radio waves. The findings were announced today in Washington, D.C., at the first Space Weather Enterprise Forum – an assembly of academic, government and private sector scientists focused on examining the Earth's ever-increasing vulnerability to space weather impacts.” It continues: “In December, we found the effect on GPS receivers were more profound and widespread than we expected,” said Paul Kintner, Ph.D., professor of electrical and computer engineering at Cornell University. “Now we are concerned more severe consequences will occur during the next solar maximum.” Read the full press release here. To read about the effects on Earth of the largest solar storm in history, check out my book The Sun Kings.
30 March 2007 ESA's Rosetta and NASA's New Horizons are working well together in their joint campaign to observe Jupiter. A preliminary analysis of the data from Rosetta's Alice ultraviolet spectrometer indicates that the data quality is excellent and that good science is expected to follow. Read the full story here for free.
12 March 2007 Italian engineers are thrilled with the successful first flight of their unmanned space vehicle (USV) programme – despite the test vehicle ending up in three pieces, one of which is now lost on the bottom of the Mediterranean Sea. Read the full story here for free.
1 March 2007 I am a science journalist and this is my place to enjoy my work and science in general with you. I particularly enjoy astronomy and astrophysics because that is what I trained in but my interest is captured by all sciences. I believe that science is fun and wonderful. It should be celebrated – even the experiments that end in failure. I'm currently fascinated by the level of the Sun's influence on modern climate change – but this does not mean I am a 'climate sceptic'. The research I have read convinces me that manmade emissions are the major cause of global warming. However, I have also read convincing papers that claim to show the magnetic activity of the Sun is responsible for up to one third of the current warming. My question is: what if the Sun's magnetic activity drops and global warming goes down as a result? How do we keep up the pressure to enact pollution controls? I am also fascinated by the nature of the dark energy – the mysterious substance that is forcing the Universe to accelerate. Is it really some kind of energy in space, a new force of nature, or a deviation from Einstein's explanation of gravity? Whatever it is, it is magnificently fascinating and will usher in a revolution in thinking when we finally explain it.
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