The unobstructed skies that gave Big Sky, Montana its name made for an appropriate setting for the release of two postage stamps depicting vistas visible to the James Webb Space Telescope.

When Pagan and DePasquale first receive the images, they appear in black and white. The colors are added to the image later, as the data from the various filters are translated into the spectrum of visible light, Pagan explained. The longest wavelengths appear red, while the shorter wavelengths are blue or purple.

"The high explosion energy of AT 2023adsv could indicate that the properties of supernova explosions might have been different in the early universe."