Yesterday, March 18th marked the two year anniversary of the Dear Astronomer website.
Interestingly enough, I had started about three years back with a Facebook page. The past few years have been truly amazing, and I want to take a moment to sincerely thank each and every site visitor, plusketeer, follower and fan.
Many people have written in with interesting questions, and I’ve been honored to help provide answers that enable people to better understand this strange, amazing, and infinitely complex universe we are a tiny part of.
This site is just a small part of my ever-growing mission to increase science literacy. For the past 8 months, I’ve also been blogging for Universe Today, and occasionally blogging for The Planetary Society Blog, and PhysOrg.com I’ve also spent a considerable amount of time participating in the amazing science communities over on Google+
Looking at the next year (and beyond), there are tons of new opportunities I look forward to participating in. To help usher the start of my fourth year as a space/astronomy blogger, I have a special treat for everyone.
Earlier this week at the SXSW festival, NASA presented the above video featuring astronaut and ISS flight engineer, Don Pettit.
The video is a tongue-in-cheek demonstration of basic physics concepts such as trajectories. In order to show how trajectories work, Pettit used bungee cord to catapult a stuffed Angry Bird toy through the International Space Station.
For those of you who participate on Google+ be sure to add Don Pettit to your circles, as he regularly posts great content from aboard the ISS.
You can view Pettit’s Google+ profile at: https://plus.google.com/u/0/115906812292895633529/posts
Carnival of Space #239 is available at Links Through Space!
This edition features great articles about:
Remember, if you’ve got a space-related blog, you really should consider joining the Carnival. It’s easy to participate – just email an entry to [email protected], and the next host will link to it.
By participating, your writing will get more exposure, and you will also meet other bloggers in the space/astronomy community, after all, community is what blogging is all about.
You can also sign your blog up to host the Carnival of Space by sending an e-mail to the address above.
Scientists were able to calculate their estimates with spectral data (intensity of X-rays at different energies) taken by Chandra in 2011. By studying how ions emit and absorb differently, researchers can better understand their behavior. Additionally, evidence suggests that the wind coming from the disk of gas around the black hole might be carrying more material than the black hole is capturing.
The process to create stellar-mass black holes is thought to be when stars five to ten times the mass of our Sun experience a collapse at the end of their lifetime.
If you’d like to learn more about the Chandra X-Ray Observatory, visit: http://www.chandra.harvard.edu/index.html
Source:Chandra Mission Images
Since Herschel is designed to observe in longer infrared wavelengths than Spitzer, combining the data helps astronomers better understand the processes taking place inside the Orion Nebula. The Spitzer data shows hotter objects in blue, whereas the cooler material (dust) in the Herschel data is shown in green and red.
If you’d like to learn more about the Spitzer Space Telescope, visit: http://www.spitzer.caltech.edu/mission
Read more about the Herschel Space Observatory at: http://sci.esa.int/science-e/www/area/index.cfm?fareaid=16
Source: NASA Image of the Day Gallery