Evidence that Earth was “seeded” by life from above? Medical Daily reports:
Did a British research balloon pick up extraterrestrial life as it skimmed the stratosphere during the annual Perseid meteor shower?
Yes, [says] astrobiologist Chandra Wickramasinghe and his fellow scientists, who claim that the microscopic algae detected on the balloon’s sterile slides “can only have come from space.” In a study presented at the Instruments, Methods, and Missions for Astrobiology conference in San Diego, Calif. last month, the team theorized that the seeds are constantly transported between planets by asteroids, comets, and other cosmic wanderers.
“The entities varied from a presumptive colony of ultra-small bacteria to two unusual individual organisms – part of a diatom frustule and a 200 micron-sized particle mass interlaced with biofilm and biological filaments.”
The presence of stratospheric life would back the panspermia hypothesis – the popular astrobiological view that life is promulgated by itinerant repositories of microorganisms that “impregnate” planets.