This fluctuation is analogous to genetic drift â a change in the population's allele frequency resulting from a random variation in the distribution of alleles from one generation to the next. It is even possible that in any one generation no marbles of a particular colour are chosen, meaning they have no offspring.
SOHO stands for Solar and Heliospheric Observatory and is a satellite that studies the Sun 24 hours a day, 365 days a year without interruptions. The spacecraft has 12 scientific instruments collecting information about the Sun ranging from activity in the Sun's corona to vibrations deep in the Sun's interior.or SOHO there are two main reasons: the unstable orbit at the L1 point and facility of communication in a halo orbit. If SOHO was sitting directly at the L1 point, it would always be right in front of the Sun.
Elizabeth Howell, SPACE.com Contributor | November 15, 2012 02:09pm ET. The Solar and Heliospheric Observatory (SOHO) is a satellite that keeps an eye on the sun's activity. It's a joint mission between NASA and the European Space Agency and has been operational for more than 15 years.nteresting sights came from SOHO in the first few weeks of operations. Although SOHO launched at a quiet time in the sun's cycle of sunspot activity, the spacecraft spotted emission jets emanating from the sun in spring 1996.