Scattering microscopic particles of sulfur in the atmosphere might slow down climate change. It might also change weather patterns.
Astronomers with the Event Horizon Telescope (EHT) made history in 2019 by producing the first image of a black hole. The object in question was the supermassive black hole (SMBH) at the center of M87, a supergiant elliptical galaxy about 53.5 million light-years distant in the constellation Virgo. This was followed in 2022 with the first-ever image of Sagittarius A*, the SMBH at the heart of the Milky Way galaxy. Now, in another first, astronomers have observed a pair of black holes orbiting each other in quasar OJ287, an Active Galactic Nucleus (AGN) located 4 billion light-years away in the constellation Cancer.

