Artificial brain helps Gaia catch speeding stars

With the help of software that mimics a human brain, ESA’s Gaia satellite spotted six stars zipping at high speed from the centre of our galaxy to its outskirts. This could provide key information about some of the most obscure regions of the Milky Way.

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Tau.Neutrino said:

Artificial brain helps Gaia catch speeding stars

With the help of software that mimics a human brain, ESA’s Gaia satellite spotted six stars zipping at high speed from the centre of our galaxy to its outskirts. This could provide key information about some of the most obscure regions of the Milky Way.

more…

“new class of high-speed stars was discovered just over a decade ago. Swooping through the galaxy at several hundred of km/s, they are the result of past interactions with the supermassive black hole that sits at the centre of the Milky Way and, with a mass of four million Suns, governs the orbits of stars in its vicinity.”

What really disturbs me about this is you can’t make high velocity stars that way. It would violate the principles of conservation of mass and conservation of energy.

Sure, objects approaching a black hole speed up, but as they leave, they go back to almost exactly the same velocity as before, so how can they be super-fast?