#UoSmorestars or #UoSmoremicrobes?
As a starter for this week, we are asking you whether you think there are more stars in the sky, or more microbes under the sea (FutureLearn).
According to calculations, the global ocean contains approximately 4.4 x 1028 living microbial cells.
(For anyone not familiar with notation such as 1028, 4.4. x 1028 means 44000000000000000000000000000 living microbial cells, or forty-four octillion if you prefer!).
How do you think that compares with the numbers of stars in the observable universe (that is to say in the multitude of galaxies that can be detected from Earth)?
Place your votes below! Voting closes here on the 25th February at 2pm.
@GeoMillie