What is Digg?17 Comments
- TheHerk, on 11/07/2009, -0/+81/1000th of 9.8m/s^2 = 9.8mm/s^2. Either way, don't jump.
- Bactame, on 11/07/2009, -3/+11Since gravity is nearly non-commital on this little moon, rocks which start moving are inclined to produce long pathways in the soft dirt on the surface. Gravity being ~9.8 mm/sec/sec means their acceleration is a slow motion affair so friction with the surface is miniscule.
- Kakemonstere, on 11/07/2009, -1/+7Anyone else thought the thumbnail looked like a bloody fish?
- DracoWI, on 11/07/2009, -1/+6@Bactame - the acceleration due to gravity is 9.8 m/s² on Earth (at sea level). On Phobos it varies due to the body's shape, but is only 0.0084 to 0.0019 m/s². After all, Phobos has a lot less mass than Earth! I think this is what you were trying to explain, just thought it should be clarified.
- BrBybee, on 11/07/2009, -1/+6It looked like a bloody something...i was afraid to click.
- TurtlesInTime, on 11/07/2009, -1/+5I thought it was a Rotten(.)com link from the thumbnail
- burRIDERton, on 11/07/2009, -1/+4A really ***** up dong
- DracoWI, on 11/07/2009, -0/+3Ah, missed that the units were millimeters/s² on the original post, not meters. You're right - don't sneeze, either.
- Fuzzycop, on 11/07/2009, -1/+4"Hey honey, I figured out what I'm gonna' do. I'm naming a crater after you!"
- rpgguy1o1, on 11/07/2009, -1/+4my crater is stickney, if you know what I'm talkin about
- Czechxican, on 11/07/2009, -2/+4Anyone else think the thumbnail looks kinda like a dong?
- Arkveld, on 11/07/2009, -1/+2http://nightskylive.net/software/apod/
This program shows the picture of the day as your desktop, automatically changing every day. It also has the explanation which is pretty cool.
Actually, I've been using this for the last year or so, with a changing desktop background every day. - comfortablydrei, on 11/08/2009, -0/+1thumbnail looked like closeup of 70s porno
- ureshiidesuka, on 11/07/2009, -1/+2theres a crater in that crater!
- Starman3, on 11/07/2009, -4/+4Explanation: Stickney Crater, the largest crater on the martian moon Phobos, is named for Chloe Angeline Stickney Hall, mathematician and wife of astronomer Asaph Hall. Asaph Hall discovered both the Red Planet's moons in 1877. Over 9 kilometers across, Stickney is nearly half the diameter of Phobos itself, so large that the impact that blasted out the crater likely came close to shattering the tiny moon. This stunning, enhanced-color image of Stickney and surroundings was recorded by the HiRISE camera onboard the Mars Reconnaissance Orbiter as it passed within some six thousand kilometers of Phobos in March of 2008. Even though the surface gravity of asteroid-like Phobos is less than 1/1000th Earth's gravity, streaks suggest loose material has slid down inside the crater walls over time. Light bluish regions near the crater's rim could indicate a relatively freshly exposed surface. The origin of the curious grooves along the surface is mysterious but may be related to the crater-forming impact.
- CATSCEO2, on 11/07/2009, -1/+1Needs a Mac version
- Bobski, on 11/07/2009, -4/+2"A different astronomy and space science related image is featured each day, along with a brief explanation."
Dammit! As much as I like the subject of this submission, I hate mouse clickers who can't even bother to clean up their contributions.
Besides, this was posted to APOD in April 2008
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