How hot is the Sun?

My sunny back garden

Yesterday I was sitting in my back garden and it was hot. And sunny. I live in Melbourne, Australia and it’s the end of spring at the moment, so hot days are to be expected. This is what it looked like:

My sunny back garden

But that got me thinking. The Earth is a . . . → Read More: How hot is the Sun?

dropOpen jQuery plugin

dropOpen_Icon

dropOpen is a jQuery plugin designed to emulate a select list while allowing complete flexibility of style and functionality. . . . → Read More: dropOpen jQuery plugin

Are we close to finding extraterrestrial life?

Alien

I was asked this question by a co-worker this morning after we discussed the upcoming NASA astrobiology news conference. Of course it’s irrelevant if NASA is about to announce the discovery of life, but that seems unlikely. So I’m going to assume that the news conference won’t go that far.

Let me say at . . . → Read More: Are we close to finding extraterrestrial life?

Skeptics should always strive to be professional and respectful

Over the last weekend I was at TAM Australia in Sydney. It was great. I’ve posted some pics and videos from the event here.

I do, however, have one point of constructive feedback, and it relates to the tendency shown by a small minority of the speakers to exhibit bias when discussing certain opposing people, . . . → Read More: Skeptics should always strive to be professional and respectful

30 minute posts

Anyone following this site (basically a bunch of spammers at the moment) will have noticed that my rate of generation of new posts leaves a lot to be desired. I’ve probably averaged one every couple of weeks so far. That’s just not enough to be interesting. The blogs I follow are updated very regularly and . . . → Read More: 30 minute posts

Pics from TAM Australia

P10509504

Over this last weekend I was at TAM Australia in Sydney. It was great. The main drawcard for me was that the whole crew of The Skeptics’ Guide to the Universe were there. I got to meet Bob Novella and Evan Bernstein, and even managed a brief chat about physics with Bob. They were both . . . → Read More: Pics from TAM Australia

“Man”, “woman” and other labels

Although we don’t usually think of them in this way, “man” and “woman” are actually labels which describe a collection of attributes. It’s usually easy to work out whether or not these attributes apply, but not always. . . . → Read More: “Man”, “woman” and other labels

Gliese 581g – possible Earth-like planet

gliese581c

Astronomers have today announced the discovery of a new extra-solar planet (ie. a planet orbiting a star other than the Sun) orbiting within the Star’s “habitable zone”. As the title of this post suggests, the planet was found in the system called “Gliese 581″, a red dwarf star approximately 20 light years from Earth.

. . . → Read More: Gliese 581g – possible Earth-like planet

The scale of the universe

hst_ngc6934

Almost every astronomical image I see makes me marvel at the scale of universe. This one is no exception. . . . → Read More: The scale of the universe

Jupiter astrophotography

Jupiter_26-09-2010

Jupiter is closer to Earth at the moment than at any time over the past few decades. I decided to try to get a picture of it. It’s WAY harder than I thought, although I’m admittedly using very poor equipment. . . . → Read More: Jupiter astrophotography

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