Showing posts with label astronomy. Show all posts
Showing posts with label astronomy. Show all posts

Saturday, April 10, 2010

Startling new astronomical discoveries are expected

Now about half way through its all sky survey is the WISE infrared telescope. It has already discovered near Earth asteroids that were otherwise difficult to discover because of their individual dark nature. Many more asteroid discoveries are expected when the project is complete.

Even more interesting are possible unknown planets, stars, or even black holes in the vicinity of our solar system. The planets might include some much closer than the nearest star, the Alpha Centauri triple system only 4.3 light years away, but well beyond Sedna and other recent discoveries of the Outer solar system. It has long been expected that a massive planet might be out there that is the cause of disturbing comet orbits. Long term 25 million year periods between catastrophes have been noted from the Earth's geological record of meteor hits, and that surmised, so far undiscovered, planet in a similar period orbit might be the cause. Its discovery would be a breakthrough. Some have called it "Nemesis" (if it exists).

Equally interesting, there could be a so called "brown dwarf" star out there doing the same thing. A brown dwarf was recently discovered only 10 light years distant.

We should start hearing news of all this from the WISE observations in less than a year or so.

Sunday, December 6, 2009

No Sunspots for 13 days

Twice this year the Sun has made a feeble attempt to resume the solar cycle. Both times the sunspots fizzled. We now have had no sunspots for 13 days.

I predict we are going to have a cold, cold winter. This past October was said to have been one of the coldest on record. The recent snowfall in Louisiana is said to have been the season's earliest on record.

Buy some long underwear. Stock up on wood as a backup for your regular heat. Buy a generator in case an ice storm knocks out the power. Propane generators are best because of the storeability of the fuel. I have the generator, but haven't done the electrical hookup.

Saturday, June 27, 2009

The Climate Report Indicted

It is now claimed by a whistleblower that the EPA report on the climate did not take into account his doubts about the rise in global temperature. It is a fact that global temperature has declined the last few years, and, those are the years omitted from the climate report. This is exactly the same discrepancy in the report that I earlier noted. I was unaware of the whistleblower's comments. His views are disputed by others, but evidence based science should be based on evidence. Duh.

So, what is the truth ? I think that this summer's survival, or not, of arctic ice will be a telling thing. Last winter was really cold, arctic ice built up, the polar bears are thriving, and this spring's melt was delayed. Let's wait until September to see whether the new ice will become old ice or water. The resumption of sunspots has been delayed but has now started. Something is going on in the sun.

As if we didn't have earthly matters to be concerned about, there is now concern that the supergiant star Betelgeuse might soon go supernova. When I was in graduate school in astronomy there was a lot of concern about the issue. Most people think the effects of a Betelgeuse supernova will not affect us too much, others are not so sure. Eta Carina star might also soon go supernova.