Slashdot Mirror

https://www.ras.org.uk/news-an...

About to go into a mini ice age... so get ready.

Settled Science.

There is some possibility that the sun may, at some time in the future, enter another sunspot minimum similar to the Maunder minimum of 1645 to about 1715. But we're not in one now.

Actually, there was a recent development in modelling the sun, which (if I recall correctly) resulted in a model of the sunspot cycle that has a high-90s percentage match to the historical data. (The key was to model it as TWO dynamos rather than one.)

Also (again, if I recall correctly) the new model predicted that we were going into something that looked like a new Maunder Minimum, with this cycle being weak and the next one nearly nonexistent.

(Sorry I can't dig up the reference right now. Only got a couple minutes left to post.)

You're referring to this one, I think: http://www.ras.org.uk/news-and...

I might note that the work only modeled three solar cycles, and has not (as far as I've seen) yet gone through peer review (the paper that the new article is about is a conference presentation.)

Before we're overshadowed by this:

http://www.ras.org.uk/news-and-press/224-news-2013/2212-astronomers-discover-the-largest-structure-in-the-universe

No, it's the same cloud, same story. (One uses miles, one km for the size.) Note that the link in TODAY's story is to a Register story dated 6 April. They've been trolled.

The original press release is here, dated 4th April.

Is here while images are here

The article didn't seem to have a link to the actual report, and judging by the comments I've seen so far, nobody here's read it yet. The RAS's report can be found here:

http://www.ras.org.uk/index.php?option=com_content &task=view&id=847&Itemid=1

Here's a portion of the summary....

The main conclusions of the RAS report are as follows:

* The essential scientific case for Human Space Exploration is based on investigations on the Moon and Mars. There are three key scientific challenges where direct human involvement will be necessary for a timely and successful outcome:

- Mapping the history of the solar system (including the young Earth) and the evolution of our Sun by studying the unique signatures left on and beneath the lunar surface;
- The search for life on Mars;
- Detailed, planet-wide exploration of Mars.

* Scientific missions to the Moon and Mars will address questions of profound interest to the human race. These include: the origins and history of the solar system; whether life is unique to Earth; and how life on Earth began. If our close neighbour, Mars, is found to be devoid of life, important lessons may be learned regarding the future of our own planet.

* While the exploration of the Moon and Mars can and is being addressed by unmanned missions, the capabilities of robotic spacecraft will fall well short of those of human explorers for the foreseeable future.

* Assuming a human presence, the Moon offers an excellent site for astronomy, with the far-side and polar regions of the Moon being shielded from the 'pollution' from Earth.
* Medical science will benefit from studying the human physiological response to low and zero gravity, to the effects of radiation and in the psychological challenge posed by a long-duration mission to Mars.

* There appear to be no fundamental technological barriers to sending humans to the Moon or Mars.

* A major international human space exploration programme involving a return to the Moon and the longer term aim of sending humans to Mars is likely to involve the US, Europe, Russia and Japan. There are also growing ambitions in China and India. Under present government policy the UK would not be involved and would look increasingly isolated.

* The cost of the UK playing a full role in an international human space exploration programme to explore the Moon and Mars could be of the order £150M per year, sustained over 20-25 years. It is not realistic for the bulk of this to be taken from the existing Government-funded science budget. Rather, a decision to be involved should be taken on the basis of broader strategic reasoning that would include commercial, educational, social, and political arguments as well as the scientific returns that would follow.

* There is compelling evidence that the outreach potential for human space exploration can be a strong positive influence on the interests and educational choices of children.
* Involvement in technologically advanced exploration of the solar system will provide a high profile challenge for UK industry, with consequent benefits in recruitment of new engineers and scientists. Evidence from NASA and ESA surveys have shown a significant economic multiplier from investment in space projects, with an additional overall gain in competitiveness.