Aethon

Why is this assumption made? Who says the original needs to die? You step into the teleportation booth, you are scanned ( insert teleportation voodoo here ) and at the other end and identical facsimile of you, down to the quantum state of your original atoms is created. Now there are two of you. There is no reason to destroy the original just to duplicate it's quantum state elsewhere. My prediction would be, after the distant copy of you finishes their business, far you will be the one destroyed- or maybe not.

http://blogs.nasa.gov/pluto/2015/09/18/art-meets-science-in-new-pluto-aerial-tour/

Not necessarily true. Seth Shostak : https://youtu.be/hM71Gxl2XcM?t=4809 "and it doesn't matter what the distance is, you can always pick them up, if you have a big enough antenna"..

You could help start it by specifying what you mean by 100 years too late. This is one of the only things I disagree with a true american hero, Seth Shostak about. That the cat is out of the bag and they know we are here. Yes anyone within 70 lys know there is technological life on Earth, and anyone else worth noting has known for the last 2 billion years that the Earth has life on it, but the nearest ETI is probably around 1000 lys away from us. Our signals haven't arrived there yet, and the Galaxy itself is >100,000 lys across. http://arxiv.org/ftp/arxiv/papers/1207/1207.5540.pdf "Earth’s radio leakage comes from many different sources that range from active cellphones to television and radio broadcasts to high-power radars used for astronomy and by the military.3 All of these signals travel through space at the speed of light, so television broad casts that occurred twenty years ago are now twenty light years away from Earth (for comparison,Proxima Centauri, the closest star to the Sun, is 4.2 light years away). Leakage radiation from television transmitters occurs approximately in a sphere surrounding Earth, so that the distance at which Earth’s radio signature can be detected has sometimes been termed the radiosphere. However, radar beams are the strongest radio leakage, and spread into space from Earth like pins on a pincushion, with most of the beams (pins) concentrated in the northern hemisphere. The intensity of signals from Earth decays with distance according to an inverse square law, but prior analyses have shown that these faint signals could still be detected at astronomical distances by a sensitive receiver and a sufficiently large antenna."

METI is not science. It is an attempt to provoke a response from an advanced civilization whose motives and abilities we cannot know. If there are other powerful entities in the universe, they certainly aren't broadcasting obvious signals into space. There must be a reason for this. As the newest born technological baby bunny in the galaxy, it is FOOLISH to shout into the jungle.

Discounting a theory because of its' long association with crackpots, gives crackpots entirely too much credit.

Anybody who show up here won't need anything we've got. Art is the only thing thing we have that is unique and may be marketable.

This will help. Travel on airless worlds. http://hopsblog-hop.blogspot.com/2014/06/travel-on-airless-worlds.html

Welding Orion together. September 5, 2015. http://www.nasa.gov/press-release/first-pieces-of-nasa-s-orion-for-next-mission-come-together-at-michoud

Everything you ever wanted to know about space warfare. http://josephshoer.com/blog/2009/12/thoughts-on-space-battles/ http://josephshoer.com/blog/2010/07/projecting-space-battle-physics/ And an associated short story. http://josephshoer.com/blog/2009/12/high-orbit/

Data downlink begins tomorrow. http://www.nasa.gov/feature/nasa-s-new-horizons-spacecraft-begins-intensive-data-downlink-phase

SETI at home is actually a project of the University of California at Berkley, and it only processes a small percentage of their data.

The main reason no signal has been detected is SETI (until recently) has been chronically strapped for cash. World wide there are about 12 people that search for signals from ETI, five of them at the SETI institute. The Milky way has 300 billion stars. SETI has examined slightly over 1000 of the nearest stars for a signal, and those in total for about 3 minutes each. If you want a better result, you should send them some money.

I used to lurk on the Orbiter forums, which is where I first heard of KSP. As long as we're being nostalgic KSP historians, I'll leave this here. http://orbiter-forum.com/showthread.php?t=20494

Isn't that a part of our technology for deploying harpoons in space?

We learned from Rosetta/Philae that our harpoon tech is seriously lacking.

Op. You're talking about the zoo hypothesis. https://en.wikipedia.org/wiki/Zoo_hypothesis For the past 2 billion years or so the Earth has been sending a signal into space that says our atmosphere is out of equilibrium. The 'red edge' of chlorophyll. Any ETI worth it's salt knows the Earth has life.

I'm not at all sure anymore that 1a supernova are a reliable standard candle. IMO some of the wackyness of the standard model comes from biased measures of cosmological distances. http://iopscience.iop.org/article/10.1088/0004-637X/803/1/20/meta;jsessionid=38E89CF97D27C1AF107A6DEA4EA73154.c1 http://www.centauri-dreams.org/?p=11732 http://phenomena.nationalgeographic.com/2014/08/28/type-1a-supernovas-cosmic-candle-mystery/ If the singularity is inevitable for intelligent races, then the galactic center is probably not the place to look for a signal. Heat is the enemy of computation. Intelligent machines may find the cold, dark depths of molecular clouds, only a few degrees above absolute zero to be more suitable for their needs. But now we're getting into alien sociology and our data set there is, to say the least, sparse.

The infrared spectrum actually passes nicely through gas and dust, but our atmosphere is opaque to most most of it, so SETI needs a space telescope. Get out your checkbooks!

Supernovae could aid us in our search for a signal from ET. Let's say a supernova goes off in our galaxy (We're way overdue. C'mon Milky way!) and is noticed by a Vogon astronomer who notifies his fellow astronomers, and all the Vogon telescopes slew around to view and study the event- but one clever Vogon thinks hey, if I wait half a day we will be looking the opposite direction from the supernova in the sky, so any non Vogon astronomers on worlds opposite the supernova will be looking directly past us at said nova. So he may send out a powerful ping into the sky (Hey, we're here) in the direction opposite the nova. This could be used to increase the chances of a successful SETI detection.

The largest radio telescope on Earth is Aricebo. IIRC it can put out a 2MW signal which we could detect (with an Aricebo type telescope) out to a distance of 400 (Seth Shostak) to 1000 (Frank Drake) light years. One of the main reasons we haven't detected a signal is that SETI is in it's infancy. We've really only looked for a signal around about 1000 stars, and those have only been looked at for a few minutes at a time. The image in your link showing all the stars you can see in the night sky in that tiny little circle is one of my favorites. Finding a signal in all that vastness is a Herculean task, like finding a specific needle in a stack of needles. A further complication is we have no idea what a signal from an entity we know nothing about would be like, so it's analogous to looking for a needle, in a stack of needles, without knowing what a needle even is. The galactic center is an interesting place to look because it is the single, unambiguous point in the galaxy, but it is also an incredibly dangerous place for biologics, like ourselves (our only data point). Incredible energies and dangerous radiation abound. The number of stars is much greater, but so is the occurrence of sterilizing supernovas.

rfmwguy test 2a. "Misspoke in video, 500 mg weight simulates downward thrust but lifts laser spot. Thermal lift would be downward movement of laser spot with upwards movement of frustum on balance beam."

Tentative KBO selected as the next target for New horizons. http://www.nasa.gov/feature/nasa-s-new-horizons-team-selects-potential-kuiper-belt-flyby-target

rfmwguy test 2. The only difference is the magnetron has been moved tot the top.

Let's just say there is some debate about whether the balance arm moved during the test, not necessarily thrust. rfmwguy has reconfigured his device for test #2. No anouncement on when to expect the test yet.