Astronomy Picture of the Day

Gigantic Jet Lightning over China
Image Credit & Copyright: Phebe Pan

Explanation: That’s no meteor. While watching and photographing this year’s Perseid Meteor Shower, something unexpected happened: a gigantic jet erupted from a nearby cloud. The whole thing was over in a flash — it lasted less than a second — but was fortunately captured by an already-recording digital camera. Gigantic jets are a rare form of lightning recognized formally only a few years ago. The featured high resolution color image, taken near the peak of Shikengkong mountain in China, may be the best image yet of this unusual phenomena. The same event appears to have been captured simultaneously by another photographer, further away. The gigantic jet appears to start somewhere in a nearby thundercloud and extend upwards towards Earth’s ionosphere. The nature of gigantic jets and their possible association with other types of Transient Luminous Events (TLEs) such as blue jets and red sprites remains an active topic of research.

Tomorrow’s picture: martian buttes


Sphinx Main

The Editor:   Can you explain the names of ” American Generations”, LL ?

Eugenics Cat:   I sure can.  Each generation is roughly 20 years. When reading the following graph ignore the Harvard Generation Y portion.  It never had enough of the right stuff to catch on with the media.   Millennials fit the bill.

As you can see, even though the Millennials should have been born by now, the influx of illegals means they might never top-out.

TE:  What will be after the Millennials, EC ?

On Your Own Cat:  About half of the Hunter- Gatherer Generation has already been born.  They will experience the Great Crash and have to hunt animals and gather crops to survive.


Sphinx Main

Air Force Cat:  Here is a great new college football helmet.  Any resemblance of the slanted eyes to any race or ethnic group alive or dead is entirely coincidental.

For the history challenged here is a WW 2 tiger movie.