"Galaxy NGC 105 appears to be merging with PGC 212515, but this is a visual illusion; they are actually separated by over 100 million light-years."
"Gravitational lensing creates stunning visual illusions in space, revealing how light can dramatically alter our perception of distant cosmic objects."
The article discusses the fascinating phenomenon of gravitational lensing, particularly in the galaxy cluster SDSS J1004+4112, where multiple images of a quasar confuse observations. It highlights the case of galaxy NGC 105, which appears to merge with a smaller galaxy, PGC 212515, though they are not related and separated by over 100 million light-years. The article emphasizes that many cosmic objects that visually appear to interact often just lie along the same line-of-sight, creating misinterpretations about their proximity and relationships.
Read at bigthink.com
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