At the heart of our galaxy lies a monster — Sagittarius A* 27,000 light-years from Earth sits a supermassive black hole packing the mass of four million Suns. Invisible to ordinary light, it only reveals itself through the glowing plasma swirling desperately around it. Left: The historic first direct image of Sagittarius A*, captured in 2022 by the Event Horizon Telescope — a fuzzy but groundbreaking orange ring of superheated gas orbiting at near-light speeds. Right: The even more spectacular polarized view, released later, that unveils the strong magnetic fields threading through this extreme environment. The swirling, organized patterns show how magnetism shapes the chaos just outside the event horizon.
The dark center is the black hole’s shadow — larger than our entire solar system. The bright ring is plasma being whipped around at insane velocities before it plunges across the point of no return. These images don’t just show a black hole. They reveal the hidden architecture of gravity, magnetism, and spacetime itself in one of the most violent places in the Milky Way. Absolutely mind-bending.
Visualizing a Black Hole
Because the force of gravity near its boundary (the event horizon) is so strong that it bends the trajectory of light, we can see not only the foreground portion of the accretion disk but also the portion that would otherwise be hidden from us by the black hole.
A stunning image of Mercury against the Sun!
This image was taken by the Solar Orbiter spacecraft, which operates in an elongated heliocentric orbit with an inclination of 24–33 degrees.
This allows it to observe the polar regions of our star, which is inaccessible to Earth-based, near-Earth, and ecliptic-plane orbiters.
The architecture of the Valley Residential building in the Netherlands
reimagines high-rise living as a carved urban landscape, its stepped form creates a “valley” of terraces layered with greenery. https://t.co/SG553r9lga