Sunday, August 12th, 2012 | photos, rocket, science, space | No Comments
In 2010 I became aware of a group in Denmark Copenhagen Suborbitals.
The group is building rockets, rather big ones, no New Year’s fireworks.
Given the size of their vehicles they could not get permission to launch from land (Denmark is a small country, and has no large deserted areas). What did they do ? Easy ! If you can not launch from land, then it must be from the sea.
In the summer 2010 I went to the presentation of their Mark 1 sea launch platform, named Sputnik. It was set to sea carrying the rocket, using a crane. This is one of the better pictures I got from the presentation.
The Mark 1 of the platform is not self powered, so they used another self made project for propulsion of the platform, yes, it is a submarine you see on the picture.
The rocket itself is 9m (30ft) tall and 60cm (2ft) diameter.
The first launch attempt later in the year failed. The count went down to 0 and – nothing happened. Well, the pyrotechnics went off as expected, but the rocket stayed in place. The failure was due to a frozen valve for the liquid oxygen.
They learned a lot about procedure and tech from the failure, and one year later, June 2011 a modified rocket and launch platform (this time self propelled) were used. Counting down to 0 and – nothing happened. After a look at the telemetry it was found that the launch signal had not arrived, and 10 – 15 minutes later another attempt was made, and off it went. I do not have pictures from that event, since only active members of the group were allowed in the area. They did, however publish a press kit on the website.
Their criterion for success was that the rocket lifted itself above the platform, the flight went up to about 2km when the flight was aborted from the ground, in order to stay within the designated area.
The rocket had no active steering and veered off like a missile. The “payload” was recovered, but not the engine stage. More on this project later.
Tuesday, March 29th, 2011 | astronomy, science, space | No Comments
I consider that there are three great spectacular events to see in the sky. All are very rare, and I have not seen all three of them. Let us take a look at this :
1. Meteor Storm :
In 1998 I was looking to get to see a meteor storm from the Leonid meteor shower. It peaks every 33 years – with variations in the size of the peak.
Following the most common predictions of the peak I made ready to stay up for a night. But – as my luck (or lack of it) was – the show did not happen on that night . . . A slightly different, but even more spectacular show of a fireball meteor storm came one night BEFORE the prediction. Many people missed the opportunity, and so did I. A colleague of mine was up in the middle of the night and thought, “fireworks at this time of the night ?”. When he looked out there was one bright fireball after the other appearing in the sky.
The following night I stayed up, and essentially nothing happened. What a disappointment. Some people claim that it was the show of a century – and I missed it. On top of that – it was a clear sky that night, something of a rarity where I live.
2. Total eclipse of the Sun :
This is one event where 99.9% is *very* different from 100%. I went to see the show in Northern France in August 1999, and nearly missed the climax of the show. but minutes before totality a small blue patch appeared in the sky, and we got to see totality. Quite a spectacle.
I wrote a modest report on the event – with a few pictures, you can find it here.
3. Northern lights – Aurora Borealis.
In Denmark where I come from, I have seen the Northern Lights twice in my life.
Funny enough, moving further South to The Netherlands I would have expected to see less of it there. But in a shorter time span I have seen Northern Lights at least twice, and even photographed it. The photo is far from spectacular, but it will have to do for me.
Enter Norway – to be more precise, the town of Tromsø. There the auroras are a common occurrence. I came across a beautiful time lapse movie made by Ole Christian Salomonsen in Tromsø.
He publishes it (in HD Video) on his blog
I heartily recommend taking a look at the 4.5 minutes of movie, the aurora and his foreground images are – well – spectacular.
Thursday, January 20th, 2011 | books, science, scifi, space | 4 Comments
I just started reading Dan Simmon’s book “Hyperion”, and I still have along way to go. I think it is interesting enough for me to read all the way through, though I am going at a slow and steady pace.
Listening to the podcast ‘Dragonpage Cover to Cover‘ I was listening to their Library segment. This is one of the few cases where I felt the enthusiasm for a book so contagious that I went to order it immediately.
The book in question is Kim Stanley Robinson’s “Galileo’s Dream”. The theme of Galileo having a peep into the future he, along with other great scientists created the basis for, is intriguing to me.
As a final note, here is a quote attributed to Galileo Galilei :
“I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.”
Tuesday, February 3rd, 2009 | space, technology | No Comments
Today Iran is a member of a very exclusive group of countries – those who have launched satellites into space.
The then Soviet Union launched the world’s first artificial satellite, Sputnik 1, in October 1957. The United States followed with the successful launch of Explorer 1 in January 1958.
France, Japan, China, the United Kingdom, India and Israel followed later .
The satellite is called “Omid” which means “Hope” in Persian, and carries experimental control systems, communications equipment, and a small remote sensing payload, according to Iranian news reports.
I do find it a bit worrying that a nation with a stated hostile intent towards USA and Israel in particular, and the West in general, now has the capability to deliver whatever type of weapons they have (their secrecy about the nuclear installations, anyone ?) to any place in the world.
It remains, however, quite a feat from a nation to do what they have done, so we must have some respect for their technical abilities. Let us hope that they will learn the lesson of the Cold War – and that they will not start a “hot one”.
Find more information on Spaceflight Now
Wednesday, December 3rd, 2008 | science, solar energy, space, technology | No Comments
NASA has finished listening for the Phoenix Mars Lander, reports Spaceflight Now in *this article*.
It comes due to the Martian Winter fast approaching, the solar panels are unable to keep the batteries charge…. and it is a little tricky to send someone to run a generator or change the batteries.
In a sense it is sad to lose a spacecraft, but Phoenix had done what it was supposed to do, and was operational for 2 months longer than its original 3 months mission. Not bad at all. The Odyssey orbiter appears to continue functioning, so not all is over yet, even if we are unlikely to hear it for some time while Mars passes behind the Sun (from our perspective).
Sunday, November 30th, 2008 | space, technology | 2 Comments
Just watched the landing of the shuttle Endeavor on NASA TV, all went perfectly well.
Beautiful video footage.
Now it is time for some sleep.
And no further radio comms were heard in the last pass over Europe.
Sunday, November 30th, 2008 | space, technology | No Comments
In about 2 hours from now the Shuttle Endeavor should land at Edwards Air Force base, since the weather forecast for Florida is poor both today and tomorrow.
Just heard comms on their UHF frequency (259.700MHz), read back of data for the landing procedure.
There is one more orbit before landing, and I will try to listen once more tonight.
Thursday, November 27th, 2008 | astronomy, science, space | 2 Comments
The Mars Reconnaissance Orbiter has detected large glaciers just under the surface of Mars.
This can be very interesting as water supply when (yes, I am optimistic) we send people to Mars – they do not have to bring large supplies of water. Could it be that – with care – the people going there can be self supporting with water supply ? Quite possible.
This is also a sign that Mars has had much more water than it has today. Maybe it even had an atmosphere dense enough to support life, more or less as we know it.
Tuesday, November 25th, 2008 | Babylon 5, film and tv, scifi, space | 1 Comment
Exactly 10 years ago, November 25th 1998 the final episode of “Babylon 5″, “Sleeping in Light” was aired for the first time, completing the epic story.
Interesting is that just a few days ago the ISS had its 10th anniversary, too (the first module Zarya was launched). An imaginary space station was decommissioned and a the building of a real life space station was initiated.
B5 is a show I have watched several times by now, and one of the few shows (scifi or otherwise) that I recommend to lots of people. One of the things is that every single time I have seen it, there is something new – a new connection inside the story, a detail that has gone unnoticed before etc.
I have introduced it to a few people, watching it together with them and seen them come to love the show as I do. Not many shows can do that, and none other has done this for me.
Thursday, November 20th, 2008 | space, technology, Uncategorized | No Comments
10 years ago today, on 20th November 1998, the first module of the International Space Station, the Russian Zarya module was launched.
At the moment of writing the ISS passes above my head (nearly), and an amateur satellite listener/tracker has strong signals coming down on the S-band (2217.5 MHz).
Since then the ISS has been built up *very* slowly, mainly due to the lots of maintenance of the Space Shuttle fleet, and of course the re-entry failure of Columbia.
Right now the crews of ISS and Endeavor are busy repairing solar panels and installing living quarters for 3 more people, making the ISS ready for what should have been the normal crew of 6.
I am looking forward to seeing the ISS fully operational.
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