Jayalakshmi K. via International Business Times:
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The high precision Planck data just released has placed the age of the universe at 13.77 billion years, besides showing that the first stars were born 550 million years after the Big Bang.
Data from four years of observation by ESA’s spacecraft shows 4.9% of the Universe to be made of ordinary matter, 25.9% dark matter and 69.2% dark, unknown energy.
The researchers calculate the current rate at which space is expanding to give the age of the universe.
The Planck collaboration, which includes the CNRS, the French Alternative Energies and Atomic Energy Commission (CEA), the French National Space Agency (CNES) and several French universities and institutions, aimed to study the Cosmic Microwave Background (CMB), the light left over from the Big Bang.
The Planck measurements, taken in nine frequency bands, were used to map not only the temperature of radiation but also its polarisation providing information about both the very early Universe (when it was 380,000 years old) and our Galaxy’s magnetic field.