They are all false, except one. Could you tell us which one is real? The remaining 224 have been created with artificial intelligence except for one of them, which is the product of an observation by the NASA / ESA Hubble Space Telescope.
NASA uses computer algorithms to process digital images of the real night sky taken by robotic telescopes, in order to find stars and galaxies and measure their properties. But to calibrate all these algorithms, the AI trains with dummy images for their optimal performance.
“The featured mock-up mosaic was created to specifically mimic the images that have appeared in NASA’s Astronomical Picture of the Day (APOD).” Some are incredibly realistic, but … there can only be one left.
Did the AI trick you?
This was the only true image of the entire mosaic:
The Crab Nebula, located 6,523 light years away from Earth and discovered in 1731 by the English astronomer John Bevis. It is located near the bottom, on the right side of the mosaic. This powerful stellar explosion can be observed with a small telescope and is filled with mysterious filaments.
The nebula, which spans about 10 light-years, was mistaken by Charles Messier himself for a comet, Halley’s Comet no more, no less. At its very center is a pulsar, a neutron star as massive as the Sun but the size of a small city.
Referencia: Realistic galaxy image simulation via score-based generative models
Michael J. Smith (Hertfordshire), James E. Geach, Ryan A. Jackson, Nikhil Arora, Connor Stone, Stéphane Courteau
Comments:
10 pages, 8 figures. Code: this https URL . Follow the Twitter bot @ThisIsNotAnApod for DDPM-generated APODs
Subjects:
Instrumentation and Methods for Astrophysics (astro-ph.IM); Astrophysics of Galaxies (astro-ph.GA); Machine Learning (cs.LG)
Cite as:
arXiv:2111.01713 [astro-ph.IM]
(or arXiv:2111.01713v1 [astro-ph.IM] for this version)
