Starship Asterisk*

ESA is talking about Rosetta finding massive sink holes on comet 67P/Churyumov-Gerasimenko.

The article went on to talk about how sink holes would increase the surface area, allowing more vaporization into space.

So basically, you've got a naturally ocurring Rocket Venturi!

Scott

Amazing!

There's an article in Space.com about auroras on Mars possibly being visible from the surface.
Makes me wonder if Hubble could spot Mars auroras from space?

Scott

Frankly, I'm more curious about the rotational exaggeration vs the relief exaggeration.

How fast does Ceres actually rotate?

Scott

Hello, The glowing rippling effect you describe sounds like it could be fog illuminated by the light reflected from the object. I suspect that any flappng object would be a bird. There are no real aerodynamic reasons to build an ornathopter. They certainly look cool, but that's about it. :mrgreen: S...

Farewell, Messenger.

Well done, oh good and faithful robot.

Scott Kellogg

There are a lot of variables in the equation. It depends on you. It depends on the person who loves you. It depends on how you feel about the person who loves you. Without knowing anything specific, I'd say it feels reassuring, knowing that someone (if they love you) will look past your faults and a...

Because I don't have anything to say other than "Wow!"
I just thought I'd throw Wikipedia's entry on the Hokusai crater out there.

http://en.wikipedia.org/wiki/Hokusai_%28crater%29

Scott

Good Morning,

It's been a long time since I've had an optics class.
Why are some of the stars flared by the lens but not all?

Scott Kellogg

I think I need to read up on Type 1A Supernovae.

Anybody got a good source?

Thanks,

Scott Kellogg
PS. How do you get to upload an avatar on here? I can't even find an option to do it.

Yipes. That's going to cause some upsets. If I recall correctly, the guy who did the initial Supernova 1A work got the Nobel Prize for it. It will be extremely embarassing if it proves incorrect. Now, I have to wonder about the mechanism for variability. The Type 1A supernova is thought to be caused...

Greetings Folks, Thanks to PBS, I ran across a series of Undergraduate Physics lectures: "The Mechanical Universe" Now, it's been a long time since I sat in a classroom and enjoyed freshman physics, but I find it is a pleasant way to sit back and enjoy the lectures. And the animated diagra...

Neil Hoofstrong and Buzz Angus landed on the Moon.

Michael Cowlins jumped over the Moon.

Scott

So, the Cow Jumped Over The Moon?

Scott

Heisenberg is driving his friend Schrodinger home from a conference. A cop pulls them over. "DO you know how fast you were going?", asks the cop. "No, but I knew exactly where I was!", said Heisenberg. The cop, suspicious, decides to check the car out. He looks over the cabin, an...

A Higgs Boson walks into a church.
The priest looks at it and tells it to leave immediately.
The Higgs Boson replies "But you need me.
Without me you can't have mass..."

Did you hear about the Stage Magician who turned his car into a telephone pole...?

Scott

Then there was the arthropologist who named his daughter Anna Lida...

Scott

So I'm watching a documentary about the dangers of near earth asteroids crossing Earth's orbit. They've got a program to prepare for any Earth-impactors asteroids by firing missiles armed with Hydrogen bombs to blow them apart before they can cause any damage. They're calling the program Preparation...

Beautiful!

I've always found Caloris Basin formation to be fascinating.
Right now, I'm writing a webcomic about a similar event on Venus.

Scott Kellogg

A problem I see with this theory is that the universe is demonstrably aging. We can see the progression of the formation of elements in the stars of distant galaxies in the concentration of iron atoms. If the universe is infinitely old, it seems to me there should be a lot more iron than there is. S...

I live on a farm in rural West Virginia.

(My day job is as an engineer.)

Our skies are pretty free of light pollution.
Big Bend National Park in South Texas is also excellent for a view of the night sky.

Scott Kellogg

I don't know about you folks, but Mr. Nimoy helped to inspire me to study Physics.

Rest In Peace, Sir. Uncounted legions were inspired to study science because of you.

Thank you,

Scott Kellogg

I've never seen such a ragged tail on a comet before.

Is that common?

Scott Kellogg

Maybe it's the alien miners from Alnilam in pursuit of Lt. Cmdr Christopher Draper and Friday....

Scott Kellogg

(Or maybe, I've just watched "Robinson Crusoe On Mars" too many times...)

Hi, I'm new here.

Has anyone found pictures of what the terrain looks like under the plume?

Thanks,

Scott Kellogg