There are thousands of celestial bodies including asteroids, meteors, comets, black holes and UFOs about which we don’t know much. The impact of these celestial bodies can harm the Earth and the whole galaxy. Scientists, researchers and astronomers are studying the activities of space but are not able to solve many mysteries. Talking specifically about the black holes, it is a region of space-time exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. It is to be noted that in the universe, black holes are one of the most complex entities. Scientists have recently discovered a star which escaped from the supermassive black hole lurking at the heart of the Milky Way, humanity’s home galaxy. Interesting, isn’t it?
The paper called as ‘The Great Escape: Discovery of a nearby 1700 km/s star ejected from the Milky Way by Sgr A*’ revealed that the discovery of a prodigal sun named S5-HVS1 that’s zooming along at ‘extreme’ speeds of almost four million miles per hour.
A team of scientists discovered that the star has spent the past 4.8 million years on a lonely journey through space after it was ‘kicked away’ from Sagittarius A*. It is to be noted that the Sagittarius A* is a name of our galaxy’s supermassive black hole.
Interestingly, this discovery was made during a project called the Southern Stellar Stream Spectroscopic Survey. The scientists said their data proved the runaway star ‘can be unambiguously traced back to the Galactic Centre’.
The scientists further claimed that the star, which escaped massive black hole, was part of a ‘binary star’. It means that the two suns locked in orbit around each other and was booted out of this system while interacting with Sagittarius A*.
Sagittarius A* is lurking about 25,640 light-years away from Earth.
The National Aeronautics and Space Administration (NASA) had recently said that it knows why the Milky Way’s dark colossus is relatively quiet compared to its greedy cousins in other galaxies. Research from NASA explained why the cosmic colossus does not appear to be as ravenous as more ‘active’ black holes, which feast on anything nearby and then emit huge burps of high energy radiation. Researchers used the Stratospheric Observatory for Infrared Astronomy (SOFIA) to examine the magnetic fields around Sagittarius A*. Researchers found that the field ‘channels’ the gas surrounding the hole into orbit around it.
If magnetic forces steered the gas into the monster, it would become ‘active’.
“The spiral shape of the magnetic field channels the gas into an orbit around the black hole,” said Darren Dowell, a scientist at NASA’s Jet Propulsion Laboratory. “This could explain why our black hole is quiet while others are active,” he added.