Botulinum, of course, serves as a canonical example. It is “the most lethal toxin known” to humanity, according to Helveston, yet therapeutic at extremely low doses.

When actively accreting matter, these SMBHs power active galactic nuclei (AGNs), with the most luminous examples—quasars—often outshining their host galaxies. Fueled by gravitational energy, AGNs have ...

NASA astronaut Nichole Ayers, 36, captured a transient luminous event above thunderstorm clouds on Thursday, July 3 “As we went over Mexico and the U.S. this morning, I caught this sprite ...

When actively accreting matter, these SMBHs power active galactic nuclei (AGNs), with the most luminous examples—quasars—often outshining their host galaxies. Fueled by gravitational energy, AGNs have ...

The quasar imaged by the team in X-rays is known as SMSS J114447.77–430859.3 (J1144) and is the most luminous example of such an object seen in the last 9 billion years of cosmic history.