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#1
Unlike the rest of the galaxy, humanity never was able to work out a good sub-light drive before first contact. This means that their ships outsize the galactic average by kilometers through sheer necessity and need for fuel space, which gives quite a fright when first contact does occur.

Of course, even with a good sub-light drive all human infrastructure is sized for ships far larger and hungrier than the rest of the galaxies and we don't really see much of a reason to stop. After all, we can drag a lot more with us now.
 
#3
Unlike the rest of the galaxy, humanity never was able to work out a good sub-light drive before first contact. This means that their ships outsize the galactic average by kilometers through sheer necessity and need for fuel space, which gives quite a fright when first contact does occur.

Of course, even with a good sub-light drive all human infrastructure is sized for ships far larger and hungrier than the rest of the galaxies and we don't really see much of a reason to stop. After all, we can drag a lot more with us now.
and we can properly do the good ol' ramming speed. Worked against the scimitar [insert shrug emoji here]
 
#4
and we can properly do the good ol' ramming speed. Worked against the scimitar [insert shrug emoji here]
Ramming speed with a bigger ship would actually be a bad idea as a method of attack. This is because kinetic energy squares with velocity, and linearly with mass(k = mv^2), so it would be a lot easier for a small, heavily armored ship to punch through a large one. Not to mention save a *lot* of fuel.
 
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#5
"What is the object's trajectory now?"
"It is decelerating quicker and adjusting its course to still be on target for Gren"

The brightly lit command deck of the Grenthling patrol ship gave its crew almost perfect oversight of everything within a billion kilometres. Science officer Tarem had been at her post for 12 hours, far longer than a standard shift, and the stims had started to make her twitchy.

"I still can't see any means of propulsion but the object is emitting small amounts of radiation across the whole spectrum. Sorry Captain, I cannot identify it. It registers simply as a radioactive planetoid on all of my instruments." Tarem's defeated explanation did nothing to improve the atmosphere.

The captain suddenly noticed a floor panel flashing and hopped over to it with a grunt. Standing directly on the panel the air around him shimmered and he could suddenly see the five members of High Senate, his planets top leadership, staring at him. The rest of the bridge crew could only see the privacy screen, a holographic but solid-looking tube stretching from floor to ceiling, which completely enveloped the captain. Now they were technically alone the crew shared worried glances and quietly murmured trying to guess the nature of the strange object entering their star system.

"Captain eHetly, please update us on your mission to investigate the unusual comet."

The captain gulped, paused to organise his thoughts, then began to reel off what he'd learned over the past few hours while the senators eyed him curiously and scribbled notes.
"We have reclassified the object as a rogue planetoid as it is approximately 3,100km in diameter and it is a spherical rocky body. However, it is unusually smooth which my team tells me means it is relatively new so could have been formed in a nearby system during a collision of some kind. I am concerned that the planetoid my contain intelligent life as it has shown signs deliberate action, specifically that it has slowed down and appeared to direct a radiation burst at us on our first approach."

"Were any of your crew injured?"

"No, senator, the burst was at such a low intensity it barely registered in comparison to the existing radiation the object was emitting. We initially thought it was an active geological disturbance but none were found. In fact we could not gain any data on the internal structure of the object."

Another senator interjected "You mentioned it has slowed down, are you suggesting this may be some kind of colossal ship?"

"I... would be hesitant to suggest that. There are no signs of any engines or exhaust and the levels of radiation produced could not be responsible for the velocity changes we've observed."

"Changes?"

"Yes, it slowed down as we approached then slowed more as we began a close orbit..." The captain stroked his beard as he pieced together his next sentence "I formally request an armed escort to join us as a precaution against a possible alien incursion. It might be advisable to send a fleet here."

eHet was well known as a calm person who detested violence so his suggestion that an armed fleet might be needed was especially troubling to the High Senate. Even if they sent the entire solar military they would not be able to destroy something the size of a planetoid anyway.

"We will discuss your request and inform you of our decision at our next scheduled update. Please continue surveillance of the rogue planetoid and attempt to make contact with any lifeform, if one is found."

As each senator loudly slammed their gavels against the desk the captain bowed. When he stood up again the hologram was gone and the privacy screen lifted to reveal a worried communications officer standing directly in front of him.

"Captain! I think there is someone over there that is trying to communicate with us. I've detected a repeating transmission at the same frequency as the Hydrogen line and it is definitely signalling the first 10 prime numbers."

"Engage first contact procedures."

--
The Gren-Earth diplomatic process started with both sides eager to gain a mutual understanding and avoid any conflict. The Grenthlings feared the Earthling's massive vessels despite having far superior transportation technology. Over the years of discovery between the two races they learned that humanity had never discovered faster than light travel so had developed colonies that spawn entire civilisations travelling the galaxy for thousands of years. They kept in contact with their home system through old-style radio transmissions repeated hundreds of times by a many millions-strong network of relay stations that spanned almost a quarter of the galaxy.

The people of Earth had long-since determined the galaxy to be a lifeless place except for their own homeworld. Their colonies had first ventured into the deep black with hopes of finding new friends but after 20,000 years the spark of wonder had ended, giving way instead to the basic Human premise of "expand or die."
--
 
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