- Fifteen Years of NASA's Chandra X-ray Observatory
This Chandra X-ray Observatory image of the Hydra A galaxy cluster was taken on Oct. 30, 1999, with the Advanced CCD Imaging Spectrometer (ACIS) in an observation that lasted about six hours. Hydra A is a galaxy cluster that is 840 million light years from Earth. The cluster gets its name from the strong radio source, Hydra A, that originates in a galaxy near the center of the cluster. Optical observations show a few hundred galaxies in the cluster. Chandra X-ray observations reveal a large cloud of hot gas that extends throughout the cluster. The gas cloud is several million light years across and has a temperature of about 40 million degrees in the outer parts decreasing to about 35 million degrees in the inner region. NASA's Chandra X-ray Observatory was launched into space fifteen years ago aboard the Space Shuttle Columbia. Since its deployment on July 23, 1999, Chandra has helped revolutionize our understanding of the universe through its unrivaled X-ray vision. Chandra, one of NASA's current "Great Observatories," along with the Hubble Space Telescope and Spitzer Space Telescope, is specially designed to detect X-ray emission from hot and energetic regions of the universe. Image Credit: NASA/CXC/SAO
Category Archives: Politics
There seems to be a lot going on in the world recently. We could spend hours talking about the Bergdahl swap, or Hillary’s comments regarding domestic terrorists, or Obama’s non-comments about anything meaningful. What does Cantor’s loss in the Virginia … Continue reading
It has been 34 years since the fall of the US Embassy in Tehran. While that is an event that many of us have placed in the dustbins of history, we received a reminder of the event as “tens of … Continue reading
Here is an approach for you. WRITTEN BY A 21 YEAR OLD FEMALE. PUT ME IN CHARGE . . . Put me in charge of food stamps. I’d get rid of Lone Star cards; no cash for Ding Dongs or … Continue reading
The events of 9/11/01 weigh on everyone’s mind today, as well they should. As time passes those memories will fade but, with the technology of the 21rst century and the 24 hour news cycle we will always be reminded of … Continue reading
A reminder piece out of Fred Thompson’s new organization.
Been a busy few weeks here but I thought I would weigh in on a political topic for a moment. Last week Margaret Thatcher passed away. A historical figure with a strength and courage the likes of which Britain had not seen … Continue reading
Over the last few years our society has spent a fair bit of time talking about “The Law of Unintended Consequences“. While this phrase dates back to the 18th century (or earlier) it has really become an adage for describing … Continue reading
Here is a nice little monologue piece about recent events. It is a good story, a little long but it is worth it to listen and watch. Make sure to stay tuned until at least the 7:30 mark, it is … Continue reading
POTUS – Shakespeare Go check this link from Weerd World for an interesting take on POTUS’ lecture earlier this week. My Thoughts on the Inauguration Speech | Weerd World.
I had been trying to figure out a tasteful way to bring up this historical point. It seems Barron has already managed it, so I direct you to: Some Historical Context… – The Minuteman.