J. A. Acosta-Pulido

Astronomers observed a gamma-ray flare from a quasar — the ultra-bright core of a galaxy with a black hole inside. The light traveled for 7 billion years. Unexpectedly, it turned out to have originated not from the hole itself, but from the dust ring surrounding it. This helps us understand how blac

Astronomers measured the polarization of light from GSN 069—the direction in which its waves oscillate. The farther from the center, the more ordered the light became. This pointed to an extinguished active nucleus: the black hole once blazed brightly, and distant clouds still reflect its former bri