Inmate Central: RE: Former Israeli space security chief says extraterrestrials exist by neolith Inmate Central, where civil and family-friendly discourse about off-audio topics (other than religion and politics) is welcome.

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Posted by neolith ( A ) on May 8, 2021 at 10:03:51

In Reply to: Former Israeli space security chief says extraterrestrials exist posted by tweaker456 on May 7, 2021 at 12:58:14:

Whenever I hear about extraterrestrials, I get to wondering how they get here. Travel is limited to the speed of light and the energy to get a spacecraft even close to that is truly astronomical. Remember the only thing that travels at the speed of light is a photon which has no mass. Anything with mass is going to travel slower.
The fastest comet recorded was going 175000 km/hr (48 km/s) which is around 1/10000 the speed of light. If someone can come up with the physics, then I will start paying attention.

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