Rapture: It ain’t gonna happen.

I’m really hoping that the mainstream media/news sites are discussing this “Rapture” rubbish because they’re making fun of it (World supposedly ends on May 21st. Again. *yawn*), because my own feelings about it are neatly summarised by this:

It’s kinda disturbing to see full articles about it on CBC and the BBC news websites though (and undoubtedly there are many elsewhere too). I’d like to hope that most people are smart enough to realise that this prediction is just the delusional ravings of a madman, but there are undoubtedly a lot of people in the world who are less educated and who don’t know better who may believe it – and spreading the word about it even further in mainstream media is not helpful (and no, I’m not going to propagate it further by linking to the articles here – if you have no idea what I’m talking about then you’re much better off that way! ;) ).

At best this sort of thing should be in the “offbeat” section of the news sites, not on the main pages. Ideally though, I don’t even think it should even be mentioned at all by them because it doesn’t deserve any attention – and yet, here we are. People believe in this sort of thing because they don’t know much about science, or how to reason or think critically about things, but the media just seems to want to propagate the story further instead of either ignoring it or pointing out that it’s nonsense. I wonder if the media will be reporting every crazy prediction made by every lunatic now? Again, I refer the reader to the Facepalm above.

So here’s my (scientific) prediction for what will happen on May 21st – absolutely nothing out of the ordinary. “Millions of people” will not “disappear” or be “raptured”. About 360,000 babies will be born, and about 155,000 people will die (ref), as happens every day on Earth. Life will go on as normal for everyone, except for the thousands of people who were dumb enough to be so taken in by the Rapture nonsense that they gave away their money or worldly goods, and I guess they’ll be feeling pretty stupid.

While it may have the odd historical account in it, the christian bible is largely a work of fiction (with many edits and embellishments over the millennia as well to distort/destroy anything that wasn’t). And the Book of Revelations is absolutely a particularly fanciful work of fiction (it’s a fun read as such though!). Hence, the Rapture ain’t gonna happen.

And as Apocalypses go, the Rapture is apparently a very considerate one. After all, it doesn’t start in one place and spread outwards from there (like an asteroid impact), it actually goes methodically by timezone across the world, happening at the same local time in each one. Apparently God is not only “vengeful” and “generous”, but he’s also convenient!

I suspect this craziness is only going to get worse as 2012 approaches… meanwhile, I’ll see you alll on May 22nd ;)

(P.S. Sorry for the lack of updates here recently – I’ve been busy with work and other projects recently and haven’t had too much time to write articles!)

MESSENGER’s first image from Mercury orbit!

The solar system’s innermost planet finally has its very own orbiter, in the form of NASA’s MESSENGER spacecraft (the acronym-makers at NASA must be very proud of that name – it’s short for “MErcury Surface, Space ENvironment, GEochemistry, and Ranging”, and MESSENGER itself is also a riff on Mercury’s mythical as the fleet-footed messenger of the gods. Cunning!).

Today, on 29th March 2001, it sent back its first image from Mercury orbit – which is exactly 37 years after Mariner 10 sent back its first pictures of Mercury after it first flew past (but didn’t go into orbit around) the planet in 1974!

The first (colour) image from Mercury Orbit!
Credit:NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

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[Book Review] How I Killed Pluto and Why It Had It Coming, by Mike Brown

Summary: A tale of discovery, long hours, family and scientific skullduggery! Very enjoyable and easy to read, and well worth picking up!

Review: Readers who are familiar with this blog may have already gathered that I have a strong interest in the question of “What is a planet” and the events and discoveries surrounding that debate. So when Prof. Mike Brown (the discoverer of Eris, the object that ultimately toppled Pluto from its perch as the ninth planet) published a book describing his side of the story I was naturally keen to read what he had to say about the affair.

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Big moon rising!

As I was cycling back from the bus stop this evening and glancing up at the full moon (all smudgy-looking, as it was shining through clouds), I was struck by how unusually large it looked in the sky. I’m very familiar with the “moon illusion” – caused by our brains playing tricks on us when the moon is near the horizon and making it look larger than when it’s higher in the sky (see this page for more details) – and wondered if this was just another example of that, but this seemed a bit different.

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Stardust flies past Tempel-1 comet!

The close approach pictures are coming back from yesterday’s flyby of the Tempel 1 comet by the Stardust spacecraft! Tempel 1 was last visited in 2005 by the Deep Impact mission, which you may recall launched a projectile that smashed into the comet. Unfortunately the impact flash was so bright that Deep Impact couldn’t actually image the crater made by the impact, but now we’ve got an opportunity to see the scar again (if it’s still visible).

Apparently everything went well and the flyby went according to plan, so Stardust’s final mission was a success! The images are being uploaded here: http://www.jpl.nasa.gov/news/stardust/ – the latest ones are at the top of the page. Here’s the latest one that’s been released at the time of writing (cropped and rotated by Emily Lakdawalla at The Planetary Society):

High resolution view of comet Tempel 1 on February 15, 2011 at 04:38 UTC, just before its close flyby. Credit: NASA/JPL/Cornell/Emily Lakdawalla

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Planethunters: How to download Kepler Data from MAST and view it in Excel (for advanced users!)

In January, I posted some instructions telling Planethunters How To ID a PH Star in the Kepler dataset. Today, I’ll go further than that and tell you how to download the original Kepler Data from MAST and view it in Excel – though note that this requires that you have some knowledge of Excel, learning/installing software, and your own FTP software as well (e.g. Filezilla), so this is definitely for more advanced users. The instructions are quite lengthy, but I’m trying to explain a lot here – hopefully they’re clear though!

I’m assuming that people will be using Excel to plot the data, and fv to view the FITS data. If you don’t use these programs then you’ll have to translate the instructions to work for you (I have no idea how other FITS viewers work), but hopefully you’ll be able to figure it out!

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Planethunters: Kepler Q2 searchable star/planet spreadsheet now available!

Kepler-11 - a newly discovered system with six transiting planets!
Image credit: NASA/Tim Pyle

The Q2 Kepler data has been officially released, making at least another 90 days of data available! Now the planethunting community should be able to confirm or deny their discoveries more easily!

Quick summary of the news in case you missed it:

  • Kepler reveals 1200 new planet candidates – including 68 earth-sized planets, 5 of which are in their star’s habitable zone!
  • One system contains no less than SIX transiting planets!
  • Updated table of confirmed Kepler Discoveries, including the new 6-planet Kepler-11 system.

    The Kepler team have also released a scientific paper on the new planet candidates for anyone interested in the details (including lots of nice graphs showing the planet distributions too!).

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  • Kepler discovers the first extrasolar rocky planet!

    Artist's impression of Kepler 10-b (Credit: NASA/Kepler Mission/Dana Berry)

    Full story at http://kepler.nasa.gov/news/nasakeplernews/index.cfm?FuseAction=ShowNews&NewsID=94
    Star and planet stats at: http://kepler.nasa.gov/Mission/discoveries/kepler10b/ (Kepler ID is 11904151)
    Discovery paper at: http://kepler.nasa.gov/files/mws/Batalha_N_Kepler-10b.pdf

    Big news today – Kepler has discovered its first extrasolar rocky planet, around a sun-like star about 564 lightyears away! Full stats, including the transit lightcurve can be found here. Interestingly the star may be very old – the age estimate is around 11.9 billion years – about as old as stars can get in our galaxy!

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    Planethunters: How to download Kepler lightcurve data! (for basic users)

    As promised, here’s the second part of my tutorial (following on from my previous post), explaining how to download Kepler lightcurve data for the stars on planethunters.org! Note however that this is intended for somewhat more advanced users than the previous one – you’ll need to know your way around Microsoft Excel for this!

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    Planethunters: How to ID a star on the Kepler Data Search site (updated to Q2)

    Kepler Search Page (screencap)


    A lot of people have asked how to identify a star that they see on the Planethunters website. Apparently the programming team will be adding something soon that says what the Kepler ID (KID) of the star is, but in the meantime I’ll show you how to track it down yourself!

    The good news is that it is possible to go to the Kepler Data Search page at http://archive.stsci.edu/kepler/data_search/search.php (shown in the screencap on the left) and find all the stars listed on the PH site, but it’s not quite as straightforward as typing the ID of the star into the search forms there – the stars on the PH site have their own ID numbers with APH or SPH in front of them, and these are not the same as the official Kepler IDs used in the Kepler catalogues. However, all the information you need to find a star is on the PH site.

    If you look at the source page for a star (e.g. http://www.planethunters.org/sources/SPH10052245 ) you’ll see on the right-hand side four “stats” for the star – “Type of star”, “Apparent visual magnitude”, “Teff“, and “Radius”. You don’t need the Type, but you’ll need the other three, so make a note of those numbers (or remember them).

    If you look at the Kepler Data Search Page, you’ll see a lot of places where you can enter numbers to search for things! It might seem a little intimidating at first, but don’t panic! Here’s what you need to do:

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