If you happen to be a writer looking for fodder for a great science fiction story, you may want to delve into NASA reports regarding star KIC 8462852. NASA is fascinated by the strange goings on about this star and bears much resemblance to a pulsar named LGM-1 (Little Green Men). This pulsar emitted strange signals that created a stir within NASA and were ultimately determined to be a natural phenomenon. The strange events involving star KIC 8462852 have yet to solved.
Monitoring this star has been the responsibility of the Kepler mission for the past four years. In 2011, and later in 2013, two significant, and as yet unexplained, events took place. What do scientists really know? They know that the star dimmed because “something” passed in front of it large enough to block its light. The gringa says, “What the heck?”
In September scientists finally reported their theory and findings on what could possibly explain these strange events. They are blaming a “swarm” or “family” of comets. The gringa’s imagination begins whirling and thinks, “Or perhaps a fleet of starships.” Another theory suggests a cluster of planetary fragments and asteroids.
Scientists are using NASA’s Spitzer Space Telescope to probe deeper into this mystery. To learn more, scientists, who first studied the star using observations conducted in visible light, then tried using infrared light. This is because if asteroids were involved and actually impacted the star there will be a whole bunch of infrared light surrounding the star and the dusty old bits of gravel from a pulverized asteroid should be at the perfect temperature to glow like a firefly under infrared wavelengths. And detecting infrared light is one of things the Spitzer Space Telescope is designed to do.
This year the Spitzer took a gander at star KIC 8462852 while looking at hundreds of thousands of stars in its search for planets. One thing in particular that Spitzer was looking for was infrared emission of space dust that encircled stars. Spitzer didn’t find any of this type of dust around star KIC 8462852 so scientists think the asteroid collision theory can probably be scratched.
So, the gringa wants to know just what their thinking is now. What the scientists seem to be leaning toward is the possibility of a “swarm” of cold comets. For such a theory to work, this cluster of comets would need to have an unusually long orbit around the star. They also call this theoretical comet cluster a “family” because it would require a “pack leader” to explain some of the phenomena. The larger “big daddy” that would be in the lead would have been the one to block the star’s light in 2011. In 2013 the rest of the family would have been passing through in front of the star and blocked the light again in the strange pattern that was recorded. This would explain why in 2015, when Spitzer observed the star again, there were no infrared signatures. The comet “swarm” was long gone and probably around on the other side of the star in its orbit progression.
The gringa must confess to thinking, “Mm hmm. Scout ship shouts, ‘The coast is clear!’ and the support ships soon set a course for the coordinates.” Oh yes, what an imagination! But please don’t judge the gringa! I just couldn’t help myself when NASA itself goes and names a pulsar something like “Little Green Men-1”.
NASA admits that what is going on with this star is strange and not understood. Their interest is extremely piqued so study and research will continue until the curiosity of these scientists are satisfied. And I ask you, is that not the greatest job ever? For every little kid that has lain on their back in the grass in the dark of the night staring up at the stars and wondering if there really are “little green men” out there, is that not just the coolest job ever to grow up and get to do!
Source & Photo Credit: http://www.nasa.gov