Comet 67P Fires Up Its Jets

These photos of Comet 67P are so spectacular they take my breath away!

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The nucleus of comet 67P/C-G as seen by Rosetta on Jan. 31(L) and Feb. 3 (R), 2015. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0. Edited by Jason Major.

Lights in the Dark

The nucleus of comet 67P/C-G as seen by Rosetta on Jan. 31(L) and Feb. 3 (R), 2015. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0. Edited by Jason Major.The nucleus of comet 67P/C-G as seen by Rosetta on Jan. 31(L) and Feb. 3 (R), 2015. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0. Edited by Jason Major.

And the show is on! The dramatic images above show the actively jetting comet 67P/Churyumov-Gerasimenko on Jan. 31 and Feb. 3, imaged by Rosetta’s NavCam from a distance of about 28 km (17 miles). Each is a mosaic of four separate NavCam acquisitions, and I adjusted and tinted them in Photoshop to further enhance the jets’ visibility. (You can view the original image mosaics here and here.)

The small bright spots and flecks in the images are bits of icy debris and dust that have been ejected from the comet. In the second image you can see what looks like deflection of the jets from the comet’s lower lobe off the underside of the upper lobe as well as a shadow of the…

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A Curiosity “Selfie” From Sol 868

From NASA’s Curiosity Rover on Mars…even our robots are taking selfies!! 🙂

Lights in the Dark

Mosaic of Curiosity images acquired on Jan. 14, 2015 (NASA/JPL-Caltech/MSSS/Jason Major)Mosaic of Curiosity images acquired on Jan. 14, 2015 (NASA/JPL-Caltech/MSSS/Jason Major)

Here’s a “selfie” of NASA’s Curiosity rover, made from about 20 images acquired by its MAHLI instrument on mission sol 868 (January 14, 2015). I used Photoshop to stitch the raw images together and then enhanced the contrast and detail with a bit of HDR effect. (There’s one spot behind the rover’s RTG where an image wasn’t available.)

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A New View of the Sun

Spectacular new images of the sun taken with NASA’s Solar Dynamics Observatory.

The Nerd Nebula

I am one of those silly people who sometimes looks at the Sun. I know it’s bad; i don’t stare for long. It just has to do with my fixation of space. Here are some new beautiful images of our Sun taken from NASA’s Solar Dynamics Observatory:

SDO Sun Images SDO Sun Images

The ultraviolet and x-ray images received by the SDO craft are helping scientists to understand the internal motion of the giant ball of burning gas:

X Ray of Sun X Ray of Sun

If you would like to see more stunning images of our star; including timelapse videos; then please follow this link.

✘ Hack It! ✘

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Five Great Blogs To Visit

One of the assignments for Blogging 101 was to pick 5 subjects and search the Reader to follow and comment on a new blog for each category. This turned out to be harder than I thought but I found some unique blogs.

The 5 subjects and blogs I chose are listed below.

Concept Art: Cold Design LTD Absolutely fantastic concept art by an artist who has worked in the gaming industry as a designer and art director. The spaceships are amazing and there is great humor in many of the images. This is a must-see blog for anyone who likes high-tech designs and exceptional painting.

Illustration: Sarah Goodreau This artist has one of the most original and unique styles that I’ve seen in a long time. Her illustrations are masterpieces in simplicity but there is an emotional power present as well. Dark and mysterious or humorous and cute, these paintings are worth viewing.

Astronomy: Lights in the Dark If you love astronomy this is the place to go. I spent over an hour reading posts when I first visited this blog. There is a wealth of articles with information and photographs of the planets, galaxies and the universe. Best of all, they’re presented in a way that is easily understood (for non-science guys like me).

Science and Nature: Stellar Science The byline for this blog is “Exploring the world around us, from the gargantuan to the infinitesimal” and that’s exactly what they do. From the vast expanse of the cosmos to the smallest sub-atomic particles this blog covers it all. Again, the articles are presented in an entertaining and easily understandable way. If you like science, you’ll want to visit this blog.

Folklore: EsoterX This is one of the strangest blogs I’ve ever seen. The articles cover folklore, monsters, mythology, psychology, culture and history with some humor thrown in for good measure. The photographs and illustrations are bizarre and strange (the header image is almost mesmerizing). It’s weird and crazy but I love it!!

I hope you’ll take the time to visit these blogs. Each of them are exceptional!!

I’ll be posting a list of other cool and unusual blogs very soon.

Best Regards,
Eric

Feel free to post a comment. Let me know what you think!!

Man and Machine

Steam Powered

Steam Powered by Eric A Gehlin
(click on image for larger view)

I have often asked myself if we (man) are in control of the advancement of technology or are we just getting swept away by it? Has the rate of technological progress gotten to the point that man can no longer control (or even keep track of) the explosion of new and more intelligent devices?

Do we fool ourselves into thinking that the latest gadget or factory robotics enhance and simplify our daily lives or are we becoming more dependent on them? Are we surrendering our freedom, our individuality, our ability to think, to machines?

I’ve been thinking about this quite often lately. There are benefits and pitfalls to all forms of progress but the trick is to keep the genie in the bottle…to maintain perspective while inundated with the latest advancements in technology.

Think about it…do we really need a phone that can control our appliances while we’re away from home?

I’m interested in your thoughts on this subject. Leave a comment…share your opinion!!

Best Regards,

Eric