The cosmic dark ages

4. cosmic dark ages : (1 million year after big bang)

A complete cosmic time table

• initial decouple radiation would have been visible by human but there are no men.

• by continue expansion space is now stretched so the now radiation is now shift from infrared to microwave and universe become dark there is no celestial object,no light.

• now sea of atom across universe began to fragment into clumps and now become first celestial object due to the effect of the gravity of dark matter(cloud of particle that formed shortly after inflation).

• cosmic dark ages ended with first celestial object(made up of only hydrogen and helium that contain thousand of mass that of sun) lived hundred of thousand of year,after that time it destroy and become a heavier element need for planet and life

in march 2013 hubble space telescope show the oldest star of the universe called Methuselah star estimated age 14.5 billion year.

how we can see a black hole :

matter falling into black holes then due to its massive gravitational clutches are heats up and emit radiation that we can see.