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Do you have a link to the earlier Apollo 8 images? The second article is about the ability of the DSCOVR satellite to capture full-disc images of the Earth (no
by theoh 8y ago
Do you have a link to the earlier Apollo 8 images?
The second article is about the ability of the DSCOVR satellite to capture full-disc images of the Earth (no mosaicing). "Other images of Earth were created using digital stitching techniques, but for 43 years, until DSCOVR’s launch, it was also the only full-disc image of the Earth in existence."
That seems like it could be true, in the absence of counterexamples.
- makerofspoons 8y agoThe Pale Blue Dot image from Voyager 1 is technically a full-disc image of the Earth, just not a very detailed one: https://en.wikipedia.org/wiki/Pale_Blue_Dot https://en.wikipedia.org/wiki/Pale_Blue_Dot
- theoh 8y agoHmmm, is the Pale Blue Dot single-pixel sample of Earth really "full disc" in the sense that the face of the Earth is fully illuminated, not a crescent? Anyway, this text is clear: "Alternately known as Triana, Goresat, or by its current name, DSCOVR (Deep Space Climate Observatory), it’s the first earth science mission distant enough from our planet to capture its entire sunlit surface in a single photograph (only one such photograph, shot from Apollo 17, was previously in existence). And it does so multiple times a day, every day—with the results posted online by NASA, ready for public consumption within 12 to 36 hours." We can get pedantic about this, but the message of the second article is that the occasion when the Blue Marble was taken was a rare opportunity, with the consequence that there wasn't really a choice or supply of up-to-date full-disc images until DSCOVR. (https://www.artsy.net/article/artsy-editorial-one-photograph-entire-earth-three-years-ago https://www.artsy.net/article/artsy-editorial-one-photograph...) None of us here actually knows everything about these complex space exploration missions, let alone participated in them. It looks pretty silly and pretentious to try playing "know it all" about an endeavour that is way above our pay grade.
- makerofspoons 8y agoI was actually just trying to be funny, my apologies.
- mxfh 8y agoThe GOES satellites took pictures continously since 1975. Looks pretty full disk to me. https://en.wikipedia.org/wiki/Geostationary_Operational_Environmental_Satellite#/media/File:First_image_from_GOES_Spac0041.jpg https://en.wikipedia.org/wiki/Geostationary_Operational_Envi... The list of MEO to GEO satellites with imaging sesnsors capable of doing this is probaly longer than just GEOS and METEOSAT. https://earth.esa.int/web/eoportal/satellite-missions/m/meteosat-first-generation https://earth.esa.int/web/eoportal/satellite-missions/m/mete... also these: https://www.metabunk.org/full-disk-hd-images-of-the-earth-from-satellites.t8676/ https://www.metabunk.org/full-disk-hd-images-of-the-earth-fr...
- interfixus 8y agoHere's one. They abound, look through the NASA archives. Other commenters refer to various satallite images, but the keyword here is "taken by a human". Borman, Lowell, and Anders were indeed - on their outbound journey - the first humans to view the full Earth. It used to be these images, more than the Earthrise one, which were considered instrumental in the rise of a new global awareness. https://earthobservatory.nasa.gov/images/36019/earth-viewed-by-apollo-8 https://earthobservatory.nasa.gov/images/36019/earth-viewed-...
- hypochondria 8y ago> Do you have a link to the earlier Apollo 8 images? https://www.lpi.usra.edu/resources/apollo/catalog/70mm/mission/?8 https://www.lpi.usra.edu/resources/apollo/catalog/70mm/missi...