Apart from screaming obscenities at any incoming threat, be it chinese space missiles or marauding space pirates, the ISS has no defensive capability. It could try to move out of the way of whatever was threatening it, but that’s about it.
The shuttle can’t defend itself as far as we know. Rutan said on a program about the X-Prize that every pound they could shave off their craft enabled them to go something like an additional 1000 ft on the same amount of fuel. No doubt there’s a similar ratio on the shuttle, so they’re not going to waste any of it on carrying weapons. Yeah, somebody could bring one down, but it’d be real easy for us to figure out who was responsible.
Now the shuttle has flown a couple of classified missions, so it’s possible that they could have carried some kind of weapons system aloft on those flights, but it’s certainly not something that they’d do routinely.
The biggest threat to the space shuttle turned out to be a combination of poor maintenance and congressional budget cuts, but if you’re interested in hard-ish sci-fi orbital space battles, I recomment Martin Caidin’s Cyborg IV (his fourth novel featuring Steve Austin a.k.a. the six million dollar man).
The Soviets thought the Shuttle could eaily be modified to carry weapons and in fact acted on that belief.
Soviet Premier Leonid Brezhnev “bankrupted his country’s space program” is sometimes said, spent way more than was logical I would say, by launching what was the largest and the most expensive project in the history of the Soviet space exploration to build the Buran - a copy of NASA’s space shuttle - because some subset of his advisers persuaded him that the United States wanted to use the SHuttle for bombing from Space.
Maybe, wrong, and wrong. The Russian space shuttle program, commonly referred to as Buran (Russian: “snowstorm”), though that is only the name of what was the least shutttle in the class (the official Soviet designation was merely “1.01”), cost between 16 and 20 billion USD; if not the most costly program undertaken by the Soviet Union, it’s certainly the most expensive for which extensive records exist (although I would guess that their SSBN or solid booster ICBM programs cost most, based on a comparison with US expenses on similar programs), and was done during a period when the Soviets had little hard cash to waste.
Buran was externally similar to the US Space Transportation System (albeit slightly larger), but those visual similarities appear to be a combination of functional design and the Soviets using cues from publically available models as a source of inspiration. There are dramatic differences in actual functionality; in particular, Buran had no internal main engines aside from orbital maneuvering and reaction control thrusters. Buran rode piggyback on an Energya rocket combined with a variable number of Zenit kerosene liquid boosters, and had a reported maximum payload mass of 125-175 tonnes to Low Earth Orbit; this is 150%-250% more than the U.S. Space Shuttle. The Zenit is still used today in Boeing’s SeaLaunch commercial space launch appendage. Other differences include the thermal protection system (all but a few of the tiles are the same shape, as opposed to the uniquely shaped tiles of the STS, and Buran used more thermal blankets than the American Shuttle originally did), automated control to orbit, internal configuration of the flight/habitation decks, et cetera.
The Soviets were never worried about the U.S. Space Shuttle being used as an antipodal bomber? Why would they? By the time you launch the STS with a few orbital bombs in place, you could have easily launched wings of ICBMs and SCBMs flying low over the horizon. Nor would it be germane for the Air Force (the presumed client in bombing operations) to do so; it would be a clear violation of the Outer Space Treaty, and would result in a dramatic uproar if it were attempted. It’s not as if you can launch the STS without the support of thousands of engineers, technicians, and logistical support, and keeping such an act under wraps would be impossible. The Shuttle is designed to carry payloads for a quick polar orbit launch and return out of Space Launch Complex 6 (“Slick Six)” at Vandenberg AFB, but these are surveillance satellite payloads, as are (I’m morally certain) the classified launches on NASA-managed shuttle launches from KSC.
The Soviets were concerned about the antipodal bombing capability of the unfortunately named and stillborn X-20 DynaSoar shuttle (also to have been launched out of SLC-6 on top of a Titan II or Titan III booster), and that was indeed once of the mission profiles for the DynaMOWS variant, but it (and later the Air Force Manned Orbiting Laboratory, which was also to be supported from SLC-6) was cancelled by Secretary of Defense Robert McNamara, who saw no strategic value in it given the capabilities of Minuteman II and Polaris. The Soviet Mig-105 “Spiral 50/50” spaceplane/booster program was the Soviet response to this, but if never got off the ground (so to speak). There are rumors, which gained apparent substantiation via the fears of the Pentagon and artist conceptual drawings of a derivative of Spiral called Uragan, Brugan, and a few other names, but there’s no evidence that this ever existed. Like the vaunted missile gap, it’s likely an exaggeration fed by fears.
You’ll note that I’ve consistently (I think) referred to Buran in past tense. After a single orbital launch (in, appropriately enough, a snowstorm) in November 1988 to little fanfair. The Soviets apparently found that their shuttle system, like the STS, cost much more to operate than anticipated, and previously scheduled followup flights never occured, most likely due to the soon-thereafter collapse of the Soviet Union. In 1993, the program was officially cancelled, and the Buran spaceframes (five of them in various states of incompleteness and configuration) were mothballed and latter scattered or salvaged (2.03, the last and least complete, was completely dismantled). Buran-1.01 suffered destruction due to the collapse of a hanger in 2002, which also killed eight people. Here is a picture of the collapsed hangar. The Energya heavy booster program is also dead (except for Zenit). It’s a pity, because cost aside, Buran might have provided a viable alternative to the STS, and with substantially more payload capacity to boot.
The Shuttle has no weapon or defensive protection systems onboard, and no conceivable use for them. If you wanted to damage the Shuttle, all you’d need to do is launch an intercepting booster with a fragmentation warhead in a vector retrograde to the Shuttle. The size of the shrapnel cloud and orbital velocity would do all the damage that need be done to disable the Shuttle. Such systems exist in U.S. and (former) Soviet inventories in the guise of ASAT weapons, but their primary purpose is to bring down surveillance satellites, not Space Shuttles.
So, more than you probably wanted to know about the STS, Buran, and other options.
Certainly! You just relay the invertor into the hyperlink access panel, which will create a tetrion beam that can knock any 20th Century technology out, easy as pie.
The war of the satellites is one that has so many self limiting elements, it may be even more militarily useless than Global Thermonuclear War.
First thing is it’s pretty hard to do it without putting a “kick me” sign up on your launch facility.
Secondly, if you don’t have an existing space program of fairly large proportions, it’s really expensive.
Thirdly, if you do, you might as well just go ahead and shoot yourself in the foot. One debris bomb in an orbit worth putting a bomb in will interdict that orbit for a very long time. Not just “the enemy” but everyone. If it gets to be a real war, then the real war becomes a non space war fairly quickly, since every successful destruction of a satellite interdicts even more orbits.
Finally, orbit shmorbit, you can do ballistic, and airborne attack platforms to the antipodes just fine, thanks. It makes tactical differences, but doesn’t prevent the nations which have orbital weapons capability from turning your country into a glass parking lot.
Now, putting a bunch of permanent weapons platforms into space does change the calculation a bit. Our Illustrious Leader, George the Magnificent, thinks that is a good idea. It makes our entire space program a military target. But, it provides us with yet another gee whiz world domination weapon to assure us that even the most moderate of nations will suspect us.
So, yeah, pretty soon the shuttle will be bristling with death rays, say of the 2020’s style.
You could try to create a decoy- if you had some self-powered payload on board this might be (fairly) easy. I’m not up on my interorbital missile tech but these things are still heat-seeking, right?
As a last-ditch effort, they’d probably try to physically intercept the path of the missile. You might be able to float a field of debris between a projectile and the shuttle, the unique characteristics of orbit would seem to make this more feasible than when you’re closer to the ground.
It would take some math, but most astronauts are pretty good at math.
Stranger, somewhere around here there’s a thread talking about someone trying revive Buran (I started it). No idea what the progress of that is, but thought you might find it interesting.