NASA: Milky Way core winds blew at 3 million kmh post ‘titanic eruption’
NASA’ Hubble Space Telescope discovered that heart of our Milky Way galaxy saw a ‘titanic eruption’ and post that event winds and gases were spewed outwards at speeds of 3 million kmh some 2 million years ago.
Astronomers have discovered billowing clouds of gas towering about 30,000 light-years above and below the plane of our galaxy – a result of the ‘titanic eruption’. These massive structures containing gas and dust were first discovered five years ago as a gamma-ray glow on the sky in the direction of the galactic center.
NASA has been observing these structures in X-rays and radio waves and through the information gathered, astronomers are looking to calculate the mass of the material being blown out to determine the cause of the eruption.
According to current assumptions, there are two possible reasons behind the origin of these two lobes: first is the firestorm of star birth at center of our galaxy and other is eruption of its supermassive black hole.
This is not the first time astronomers have discovered eruption at the centre of galaxies, but this is certainly the first that scientists are getting unique views of such explosion in our own galaxy.
Andrew Fox of the Space Telescope Science Institute in Baltimore, Maryland, lead researcher of the study, said that when one looks at the centers of other galaxies, the outflows appear much smaller because the galaxies are farther away, but the outflowing clouds they are seeing are only 25,000 light-years away in our galaxy.