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I have read that in the early 1960's Telstar 1 and 2 were the first satellites to route long distance telephone calls. I seem to remember that long, long ago, long distance (overseas?) … phone calls did have noticeable latency and sometimes annoying echoes, and I suspect that this was due in part to the light time from Earth to a satellite and then back to Earth, and the echoes were because …

I am sure that the long propulsive periods (months or years) have had integrated fine tunings as their progress has been monitored, Thrust vectoring for ion propulsion - any plans or current research? … A specific example is necessary for a "yes" answer, but I suspect the answer might be "no" or "not really in a separate TCM as they are currently recognized, but definitely integrated into long propulsive …

I suspect the main reason my estimate was high is that I assumed the velocity of the backwards underhand motion of the astronaut was half of the world's record for the speed of a thrown ball. … I should have done some frame-by-frame photogrammetry of the YouTube video instead. …

this currently unsourced answer currently says in toto: I suspect any interstellar travel will have relativistic effects (it's a factor of even interplanetary travel), the only reasonable timezones are … Also, since (I presume, because again no sources) that each is measured in a different frame. …

ORS-5 or "SensorSat" is a technology demonstration for a class of satellites that will sit in LEO and keep an eye on the GEO belt for any "debris" which I suspect means pranksats or worse. …

That sounds so reasonable to me that "I suspect" most crewed missions were given enough rope to do at least something. Question: Just how much rope have different crewed missions been given? …

Photomultiplier tubes and micro-channel plates and charged particle spectrometers are common users of at least a few kV, but I suspect that there are some higher voltages out there somewhere. 10 kV? …

I checked 2018-099 in Celestrak's satcat again for the question Where can I find the TLE of ExseedSat 1, India's first ever private LEO satellite? … Please no "I suspect..." answers. If it is known please post, but for this question pure speculation doesn't count without some supporting source(s). …

At about 04:58 in Scott Manley's new video NASA Might Be Giving Away A Saturn I Rocket - Here's Why I Love This Vintage Booster he says: So the four engines in the middle of this thrust plate (plane?) … I think that’s great, and I never quite figured out why this decision was taken, and I suspect it’s got something to do with the engines gimbaling. …

At least two on the 2nd stage nozzle, at least one on the payload, at least one on a gridded fin, one in the 2nd stage LOX tank, and I suspect there are many more. …

@astrojuanlu's answer mentions the existence of the Python package poliastro, and in the documentation there I found an example titled Going to Mars with Python using poliastro among others. … I'm looking for more than just armchair speculation or "I suspect" class of answers. …

I quote Spaceflight 101: The INRRI Corner-Cube Retroreflector weighs under 25 grams, is 5.5 by 2.0 centimeters in size and is envisioned to be tracked by Mars orbiters capable of laser ranging or laser … Both are for future orbital laser missions and both have a link to Europe, and they look identical as far as I can tell, so I suspect they are sisters. …

I frequently see the Moon in SpaceX videos, "I suspect" the frequency is higher than random, but can't prove it (yet!) … "I suspect" that one of them is the Moon, any thoughts on which one it is, and what the others are? …

If they are substantially different (as "I suspect") then what would a landing on Mars be like? …

I suspect that there is a simple mathematical underpinning to assertion of existence of a time "where departures will beat departures made at all other times." and that is actually an interesting intellectual … I was also interested to learn in an e-mail from Kennedy that he has a second paper on the subject in the works. We’ll look at it here when it appears. …