Ray system they have been identified on Mars in infrared images taken from orbit by "2001 Mars Odyssey"s thermal imager. Rays appear at visible, and in some cases infrared wavelengths, when ejecta are made of material with different reflectivity (i.e., albedo) or thermal properties from the surface on which they are deposited. Typically, visible rays have a higher albedo than the surrounding surface. More rarely an impact will excavate low albedo material, for example basaltic-lava deposits on the lunar maria. Thermal rays, as seen on Mars, are especially apparent at night when slopes and shadows do not influence the infrared energy emitted
Albedo One Albedo One Albedo One is an Irish horror, fantasy and science fiction magazine founded in 1993 and currently published by Albedo One Productions. "Albedo One" is widely regarded as the successor to the defunct Irish science fiction magazine "FTL", which was originally published by the (also now-defunct) Irish Science Fiction Association. "FTL" was itself a successor of the Irish magazine "Gateway". "Albedo One" is often credited as holding the position of the "longest running Irish magazine of speculative fiction" and has been billed as "Ireland's answer to "Interzone"." From issue 1, 1993, to issue 12, 1996, "Albedo One" was published