Quote by Bill Nye

“the stars visible from Earth have been estimated at “only” 7 × 1022. The mass of these cells approaches 2 × 1015 pounds, or…

— Anne E. Maczulak

“Guesswork plays a part in these estimates. Bacteria exist 40 miles above the Earth and 7 miles deep in the ocean, and most of…

— Anne E. Maczulak

There are in fact 100 billion galaxies, each of which contain something like a 100 billion stars. Think of how many stars, and planets,…

— Carl Sagan

“The number of cells in your body outnumbers galaxies in the universe by 37 trillion.”

— James Temperton

“No one knows the number of bacterial species. About 5,000 species have been characterized and another 10,000 have been partially identified. Biodiversity authority Edward…

— Anne E. Maczulak

The number of habitable worlds in our galaxy is certainly in the tens of billions, minimum, and we haven't even talked about the moons.…

— Seth Shostak

“With considerable security, therefore, we can draw the conclusion that even with a hundred billion trillion stars in the observable universe, the probability of…

— Hugh Ross

The majority of life on Earth is microbial

— Caleb Scharf

“we probably know of less than 1 percent of soil biology. “A recent study found that there are more than 1.6 million species of…

— Judith D. Schwartz

The math is dead simple: it seems that the frequency of planets able to support life is roughly one percent. In other words, a…

— Seth Shostak

“The number of external galaxies beyond the Milky Way is at least in the thousands of millions and perhaps in the hundreds of thousands…

— Carl Sagan

“There are about one hundred billion galaxies within this visible universe and the average density of material within a galaxy is about one million…

— John D. Barrow