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posted by Fnord666 on Friday July 24 2020, @06:07PM   Printer-friendly
from the better-than-semper-sub dept.

Space Force unveils logo, 'Semper Supra' motto - SpaceNews:

The U.S. Space Force revealed its new logo and motto as the service seeks to build branding and cultural identity.

The black-and-silver service logo unveiled July 22 has the delta wing as its central element that is also found in the Space Force seal and flag. There is a "Space Force" horizontally shaped logo and a USSF vertical logo.

The Space Force motto "Semper Supra" means "always above." It represents the service's role in establishing, maintaining and preserving U.S. freedom of operations in the ultimate high ground, a Space Force spokesman said.

The logo was designed by the Department of the Air Force's advertising agency GSD&M.


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  • (Score: 2) by HiThere on Saturday July 25 2020, @01:48PM (3 children)

    by HiThere (866) Subscriber Badge on Saturday July 25 2020, @01:48PM (#1026153) Journal

    Excellent calculations that miss the point. 1/16 of a cublic mile of water is still so bad that it doesn't stay localized, and targeting it is difficult. I didn't want to pick any place in particular, but most plausible targets are close to an ocean. The Chicxulub impactor was about 10 – 15 km (6 – 10 miles) in diameter, and I was envisioning something considerably smaller. And it's still overkill.

    Many space based weapons are overkill with wide dispersion and difficult to target. Precision targeting isn't usually really a plausible assumption. As for "dumping the energy directly on the enemy", that's pretty much was a meteor impact is...if your aim is good. Lasers are a lot less efficient, and building them gives warning.

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  • (Score: 2) by c0lo on Sunday July 26 2020, @12:11AM (2 children)

    by c0lo (156) Subscriber Badge on Sunday July 26 2020, @12:11AM (#1026364) Journal

    Excellent calculations that miss the point...

    As for "dumping the energy directly on the enemy", that's pretty much was a meteor impact is...if your aim is good.

    Speaking about missing the point - as of today, no nation is capable of energies required to deflect a meteor towards Earth, much less doing it with enough precision.

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    • (Score: 2) by HiThere on Sunday July 26 2020, @01:43PM (1 child)

      by HiThere (866) Subscriber Badge on Sunday July 26 2020, @01:43PM (#1026563) Journal

      I think you overestimate the energy required. I'll admit that application is beyond current state of the art, but small amounts of energy applied at appropriate points of the orbit could do it even with the modest amounts of energy currently available. (Of course, it might take a few decades to do the job.)

      Actually, I'd need to study the matter a bit but I think that if the asteroid is rotating (which almost all are) that there are angles at each rotation that could be usefully used to perturb the orbit in many directions. Thinking a bit more, though, it might be more like centuries.

      Still, if you're only considering near-term dangers I'll admit that something like "rods from god" is potentially much more near term. And again I figure that it would have a huge circular error, though it's not going to directly cause a global disaster. Indirectly, however, even setting something like that up is likely to cause someone to trigger a Kessler syndrome.

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      • (Score: 2) by c0lo on Sunday July 26 2020, @02:03PM

        by c0lo (156) Subscriber Badge on Sunday July 26 2020, @02:03PM (#1026570) Journal

        I think you overestimate the energy required.

        No, I don't think so. If you pick an asteroid from the belt, you'll need to "convince" it to change its momentum (at least as direction) to intersect Earth's orbit - in other words, to push it towards the Sun. That Δv (as vector) is going to cost somewhere the same order of magnitude with the difference in the potential energy between the two orbits.

        When it comes to the time required to deliver the energy, if it takes decades, not only it's useless as strategy, but aiming it with enough precision against your enemy is totally out of the picture.

        Still, if you're only considering near-term dangers I'll admit that something like "rods from god" is potentially much more near term.

        Even Lazy Dogs [wikipedia.org] launched from stratospheric balloons has better chances to deliver some damage to your enemy that asteroid bombardment. Be it only that you'll need to spend a multimillion rocket to down it and the attacker only needs a few $1000 to launch it from international waters on a wind that will get it over your territory somewhere.

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