In the collaboration between the NASA and Gaia observation craft of the European Space Agency, a team of experts calculated the calculation of our galaxy from approximately 1.5 trillion solar masses.
Paris: Astronomers said on Thursday that they had calculated the mass of the Milky Way for the first time, in which new data sets have been used, including the weight of dark matter.
In the collaboration between the NASA and Gaia observation craft of the European Space Agency, a team of experts calculated the calculation of our galaxy from approximately 1.5 trillion solar masses.
The previous estimates put the mass of the Milky Way between 500 billion and 3 trillion times the Sun's mass.
The uncertainty stems from the various methods used primarily to measure dark matter - which does not absorb or reflect any light and is thought to make about 90 percent of the ingredients in the universe.
Laura Watkins of the European Southern Observatory, located in Germany, said, "We cannot detect dark matter directly." "This leads to uncertainty present in the mass of the Milky Way - which you can not see, you can measure it correctly."
To move around this, the team measured the velocity of the spherical groups - the dense group of stars that orbiting the galaxy at a great distance.
N. Evin Evans of Cambridge University of Astronomy University said, "The larger the galaxy, its flakes move towards its gravity as fast as possible."
"In most previous measurements, the speed has been found on which a cluster is coming from the earth or retreating, that is the velocity with our vision line."
Instead, researchers were able to use Gaia investigations and data collected by NASA's Hubble Telescope so that the speed of the groups could be measured.
With this, they could calculate their total velocity and their mass from that.
The Milky Way, the galaxy in which the Earth has a solar system, is home to 400 billion stars an estimated 100 billion planets.
Paris: Astronomers said on Thursday that they had calculated the mass of the Milky Way for the first time, in which new data sets have been used, including the weight of dark matter.
In the collaboration between the NASA and Gaia observation craft of the European Space Agency, a team of experts calculated the calculation of our galaxy from approximately 1.5 trillion solar masses.
The previous estimates put the mass of the Milky Way between 500 billion and 3 trillion times the Sun's mass.
The uncertainty stems from the various methods used primarily to measure dark matter - which does not absorb or reflect any light and is thought to make about 90 percent of the ingredients in the universe.
Laura Watkins of the European Southern Observatory, located in Germany, said, "We cannot detect dark matter directly." "This leads to uncertainty present in the mass of the Milky Way - which you can not see, you can measure it correctly."
To move around this, the team measured the velocity of the spherical groups - the dense group of stars that orbiting the galaxy at a great distance.
N. Evin Evans of Cambridge University of Astronomy University said, "The larger the galaxy, its flakes move towards its gravity as fast as possible."
"In most previous measurements, the speed has been found on which a cluster is coming from the earth or retreating, that is the velocity with our vision line."
Instead, researchers were able to use Gaia investigations and data collected by NASA's Hubble Telescope so that the speed of the groups could be measured.
With this, they could calculate their total velocity and their mass from that.
The Milky Way, the galaxy in which the Earth has a solar system, is home to 400 billion stars an estimated 100 billion planets.
Scientists calculate the masses of the Milky Way Galaxy, using dark matter weight
Reviewed by Know It All on March 08, 2019 Rating:
Reviewed by Know It All on March 08, 2019 Rating: 
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