When you purchase through links on our site ... At the moment, the origin of this keyhole feature isn't known. — Hubble Space Telescope watches galaxies' destructive dance in new photo ...

a space telescope with more powerful optics than Hubble that flew from 2009 through 2013, confirmed that the keyhole is, in fact, a hole, providing a view to space on the other side of the nebula.

The requirement for an object to be surrounded by empty space when imaged by coherent ... Propagation of light through an object and its environment can be described exactly by Maxwell's equations.

The viral post, shared by user Mob_Slime, features an image of what appears to be an inverted projection of the street outside, visible through a keyhole. The intriguing post's caption says ...

Day 8 of the 2024 Space Telescope Advent Calendar: a mysterious nebula. Details of a complex structure within the Carina Nebula (NGC 3372) are revealed by this image of the Keyhole Nebula ...