Recent comments in /f/space

reddit455 t1_jcvf7bo wrote

Reply to The Fermi Paradox and the Possibility of Intelligent Extraterrestrial Life by Beginning-Court1946

>What do you think is the most likely explanation for the Fermi paradox?

how long have we had radios?

vs

radio signal travel time?

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https://en.wikipedia.org/wiki/Arecibo_message

The message was broadcast into space a single time via frequency modulated radio waves at a ceremony to mark the remodeling of the Arecibo Telescope in Puerto Rico on 16 November 1974.[1][2] The message was aimed at the current location of M13, about 25,000 light years from Earth, because M13 was a large and relatively close collection of stars that was available in the sky at the time and place of the ceremony

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what if they just don't want to talk to us?

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Icy_Blackberry_3759 t1_jcvd19p wrote

Reply to The Fermi Paradox and the Possibility of Intelligent Extraterrestrial Life by Beginning-Court1946

I think it’s fairly obvious: life is an inevitable phenomenon, and highly intelligent life follows, but the universe is extremely vast and the conditions for life to exist are rare enough that the physical distances and are literally astronomical against the light speed limit. So there might be several life forms out there capable of seeking out and contacting other life forms, but that’a another level of steep probability- even if there were fifty thousand such life forms, and their search lasted hundreds of thousands of years at near light speeds, the vastness of the universe really just makes the chances of them coming across us and contacting us fairly slim. The speed of light is a pretty strict limit.

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3SquirrelsinaCoat t1_jcv9vwn wrote

Reply to comment by shanefking in Fallen Astronaut statue and a name plaque left on the surface of the Moon by the crew of Apollo 15 by AlbaneseGummies327

To find Neanderthal sites, we imagine their activity and look in logical areas and then get very lucky. In 60,000, if human data is lost at some point (which becomes a greater risk with digitizing knowledge), future anthropologists with slim details about our civilization might only know, "They went to the Moon. We suspect in these areas. Let's see what we can find." And then they get lucky and find this guy with the hieroglyphics plate nearby.

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3SquirrelsinaCoat t1_jcuzplg wrote

Reply to Fallen Astronaut statue and a name plaque left on the surface of the Moon by the crew of Apollo 15 by AlbaneseGummies327

If you think about the artifacts we have from ancient human history, the stuff that survives is small and blunt. An arrowhead, a shell trinket, even a little carved doll. Imagine historians 60,000 years from now. Will they remember what we did, or is this one of the things that will remain and they'll wonder what we meant by it?

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Photon_Pharmer OP t1_jcuyrvd wrote

Reply to Moon Shadow Over Jupiter by Photon_Pharmer

Image Credit: NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill

Citizen scientist Kevin M. Gill created this enhanced-color image using data from the spacecraft's JunoCam imager. The raw image was taken on Sept. 11, 2019 at 8:41 p.m. PDT (11:41 p.m. EDT) as the Juno spacecraft performed its 22nd close flyby of Jupiter. At the time the image was taken, the spacecraft was about 4,885 miles (7,862 kilometers) from the cloud tops at a latitude of 21 degrees.

JunoCam's raw images are available for the public to peruse and process into image products at: https://missionjuno.swri.edu/junocam/processing.

NASA

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