tag:blogger.com,1999:blog-3425026258646605219.comments2022-04-28T12:49:03.945+08:00AreologyJDsghttp://www.blogger.com/profile/04735390644321868222noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-3425026258646605219.post-7213960751449678322014-09-20T17:54:06.363+08:002014-09-20T17:54:06.363+08:00Simon:
First, thanks for visiting.
Second, the o...Simon:<br /><br />First, thanks for visiting.<br /><br />Second, the original caption (which I merely copied-and-pasted from the HiRise site) was written by an Alexandra Davatzes (http://www.uahirise.org/PSP_003538_1885). She (if she's still affiliated with HiRise; the commentary was written four years ago) might be reached through HiRise's contact page (http://www.uahirise.org/contact/).<br /><br />Lastly, and this is purely a guess on my part, but perhaps Alexandra had based her caption upon the larger contextual images (see the "Image Products" section of the page) as opposed to the featured image that shows up on my blog.JDsghttps://www.blogger.com/profile/04735390644321868222noreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-14589003413360339582014-09-19T04:44:02.768+08:002014-09-19T04:44:02.768+08:00Hmmm ... having just returned from a 2 week geo-to...Hmmm ... having just returned from a 2 week geo-tour in the Washington Scablands (Aug-Sept 2014), I really cannot identify the elements you describe. Exactly where is the cataract/headcut in this image - and where is the incised channel ? I feel that this is important given the very few examples of such features known on Mars ... yet the purported analogy with WA Scablands is all over the literature.<br /><br />Simon (PhD, Geology)Simon Hanmernoreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-75635017310288084602013-08-21T17:34:10.450+08:002013-08-21T17:34:10.450+08:00The location is north of Argyre impact basin. The ...The location is north of Argyre impact basin. The meandering channel is Nirgal Vallies. The large crater on the upper right is Holden crater.<br /><br />Kind regards,<br /><br />BillAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-38495027635120864842013-05-04T08:51:33.464+08:002013-05-04T08:51:33.464+08:00Mark: I think your suggestion of a maar sounds qu...Mark: I think your suggestion of a maar sounds quite reasonable.JDsghttps://www.blogger.com/profile/04735390644321868222noreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-76216622014012224372013-05-04T06:59:57.102+08:002013-05-04T06:59:57.102+08:00They look like Maars, or due to a similar phreatom...They look like Maars, or due to a similar phreatomagmatic eruption.Mark Dowhttps://www.blogger.com/profile/17864061121760358984noreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-22042256404582518372012-08-31T04:04:02.589+08:002012-08-31T04:04:02.589+08:00Hi, Northwest Territories Tourism is doing a compa...Hi, Northwest Territories Tourism is doing a comparison of Yellowknife, Mars and Yellowknife, Earth. We'd love ti if you checked it out. http://spectacularnwt.com/marsNWT Tourismhttp://spectacularnwt.com/marsnoreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-61272422433750557262012-05-28T02:06:36.381+08:002012-05-28T02:06:36.381+08:00Ater this post I have to say something: I wait eve...Ater this post I have to say something: I wait every day for a new Photo. Thanks!!! <br /><br />Felipe Acera. PhD in Biology, in love with Mars and space exploration since I read the Stanley's trilogy.Anonymoushttps://www.blogger.com/profile/09280997824465237132noreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-25249870020938324362012-05-19T19:04:13.404+08:002012-05-19T19:04:13.404+08:00Really good blog, and often updated, congratulatio...Really good blog, and often updated, congratulations!<br />These super HD photos you display are really making Mars a much closer destination, at least for imagination!<br />I can't wait to see how much more we will gain from the eyes of Curiosity!<br /><br />I invite you to take a look at some graphic work I make about Mars and that I show on a dedicated blog called Da Vinci Mars Design. Here is my orbital vision of Olympus Mons :<br />http://davinci-marsdesign.blogspot.fr/2012/04/olympus-mons-from-orbit.htmlLudohttps://www.blogger.com/profile/07204328705902114300noreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-23901623420722495522010-08-15T10:03:18.676+08:002010-08-15T10:03:18.676+08:00WHY AREN'T WE DOING VACUUM CHAMBER EXPERIMENTS...WHY AREN'T WE DOING VACUUM CHAMBER EXPERIMENTS RIGHT HERE ON EARTH?<br />What really happens when liquid water is released into a vacuum and flows down a dirt slope? Nobody has actually tried this, so let's do the experiment. We have large vacuum chambers here on earth that can be pumped down to the atmospheric pressure of Mars. Let's build a few dirt slopes in such a chamber, pull a vacuum, and then dump some water down these slopes. Maybe we can match the Mars gullies by doing this, or maybe we can't, but in either case the results will be highly interesting. In fact, somebody could make a very good Ph.D. thesis out of this idea. Will it be you? <br />Herbert in Oakland CaliforniaHerbert Highstonenoreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-9012716839184970882007-07-29T12:27:00.000+08:002007-07-29T12:27:00.000+08:00Thank you for writing my first comment, Chuck! I ...Thank you for writing my first comment, Chuck! I do appreciate that very much.<BR/><BR/>I'm not sure if I can keep up a daily pace on this blog; however, I'm hoping to write up several days' worth of posts at once so I can be like you and the APOD guys. <BR/><BR/>BTW, I did know that about the Martian altimetry readings (due to MOLA), but I was being lazy that day, not getting a calculator out to verify the crater rim height to diameter percentage. ;) And as huge and deep as Hellas is, yes, the percentage is only about 0.3%.JDsghttps://www.blogger.com/profile/04735390644321868222noreply@blogger.comtag:blogger.com,1999:blog-3425026258646605219.post-70795787336170404102007-07-29T08:25:00.000+08:002007-07-29T08:25:00.000+08:00Day 1, photo 1! Good luck - you will find a daily ...Day 1, photo 1! <BR/>Good luck - you will find a daily POD soon takes over your evenings - especially if you are going to describe what's on each image. But its a great way to learn - and to improve writing skills!<BR/><BR/>Chuck Wood<BR/>LPODTychocraterhttps://www.blogger.com/profile/07163742030826999233noreply@blogger.com