Re: What is the best evidence for or against UFOs?

On Mon, 22 Sep 2025 13:51:35 -0500, Dawn Flood
<[email protected]> wrote:

>On 9/21/2025 10:41 PM, Vincent Maycock wrote:
>> On Sun, 21 Sep 2025 19:25:55 -0500, Dawn Flood
<snip>
>>> I would have to take issue even with unmanned space probes, all of which
>>> require some energy to function, even if they are sitting in standby
>>> mode.  Even the PCBs in the spacecraft will degrade over time, as it
>>> would take tens of thousands of years for one to travel the distance to
>>> the nearest star (other than our Sun), Proxima Centauri.  When (and if)
>>> such a probe arrived, it would be completely dead.
>>>
>>> Dawn
>> 
>> Have you taken time dilation into account?
>
>I think that's irrelevant, because, getting a spacecraft up to 90% (or 
>more) of the speed of light would require enormous amounts of energy, 
>and an equal amount of energy to slow the thing down.  What would be the 
>source of this energy, especially, that which is needed for the slow-down?
>
>Dawn

Right.   I was just saying that *if* rockets could reach relativistic
speeds, *then* long life spans for the astronauts would not be a
problem.