Earth as we know it is visited by alien life . Upon the landing , a human emerges and says , `` Your species and mine are one in the same . Now it is time to bring you back to the Empire '' . [ WP ]

The roar of the conference hall died down to absolute silence as the video began to play. After some initial static and several bright flashes, A sweaty, teary eyed man in a labcoat fills the frame. According to the scientists, the flashes were a codex for the language the probe builders used, and with it they were able to translate the message from the probe. While clearly an alien language it still sounded eerily familiar. The subtitles began to scroll below the man in the smock, and the entire crowd listened and read in awed silence; 
 
 Our home has been destroyed. 
 
 All of our outlying colonies are being systematically wiped out. 
 
 A series of these probes have been dispatched to our most remote exploration and terraforming crews. 
 
 The only way we were able to send this message was through sublight speed probes disguised as debris as to not lead the enemy to the last pockets of humanity. 
 
 By the time this probe reaches its target, ( millions of years ) will have passed since is creation. 
 
 In the event that any crews correctly surmised their isolation and executed their contingency plan, this probe is for their descendants. 
 
 We do n't know who is attacking us or why. All we know is that they are using a super weapon that destroys entire star systems, and it's emissions have been detected from multiple points that are apparently outside of our galaxy. 
 
 The device uses narrow beams of intense gamma radiation, and those are the only detectable means to know you are being targeted by it. * *These bursts will be less than 1 second in duration, and that is how to differentiate the alien device from natural stellar collapse. 
 
 The time frame from initial detection to detonation is ( 100 years ). 
 
 Everything within ( 100,000 AU ) of the host star/stars will be destroyed. 
 
 This probe is the remains of a destroyed FTL core. The schematics for the materials and assembly are also encoded in this message. 
 
 Once a FTL drive is used in a star system, the alien energy bursts are detected within ( 1 year ). It is imperative for your survival not to use this technology unless you detect the weapon's energy in the future, or already detect it now. 
 
 There is a good probability you represent the last gasp of humanity. Know that while you are alone now, ( trillions ) have come before you. Your family is large and has spread across the entire galaxy. If you are seeing this, you are proof that humanity can survive that which has killed off every other known intelligent species. 
 
 Do not let ignorance and infighting destroy you like it has destroyed us. 
 
 The video started into a much longer series of flashes and static. The crowd remained completely silent. The host broke the silence: 
 
 `` We are still going over the vast amounts of data this device contains. After getting through the first part of the transmission, we knew we had to hold this conference. I know everyone has a lot of questions, but first we have brought in a world leader on gamma ray burst research- Dr. Evelyn Neil. She has some urgent data relevant to what you all just saw. 
 
 A teary eyed woman takes the stage. 
 
 `` I'm not going to sugar coat this.'' 
 
 The screen fills with a globe representing the night sky. Hundreds of tiny points are marked with a red X. 
 
 `` These are all the gamma ray bursts under 1 second in duration we've detected since 1967.''
