The Very Large Array can’t image a big section of sky all at once. Instead, it must scan the sky over time. The VLA Sky Survey is using this method to create a map of nearly 80% of the observable sky. Join our host Summer Ash of the National Radio Astronomy Observatory as she talks about how the VLA is taking the time to see the big picture of the radio sky.
New multi-wavelength observations mounted by the Event Horizon Telescope (EHT) collaboration across the entire electromagnetic spectrum have provided new insight into the impact of the black hole at the core of galaxy M87 on its immediate, and not so immediate, surroundings.
The Event Horizon Telescope (EHT) — the worldwide collaboration that produced the first image of a black hole in 2019 — has produced a new image showing details of the magnetic fields in the region closest to the supermassive black hole at the core of the galaxy M87. The new work is providing astronomers with important clues about how powerful jets of material can be produced in that region.
Astronomers using the VLA took advantage of the gravitational lensing provided by a distant cluster of galaxies to detect an even more-distant galaxy that probably is the faintest radio-emitting object ever found.
Astronomers using the VLA and VLBA have found the most distant cosmic jet yet discovered, material propelled at nearly the speed of light by a supermassive black hole in the core of a galaxy some 13 billion light-years from Earth.
New studies using the VLA and other telescopes have added to our knowledge of what happens when a black hole shreds a star, but also have raised new questions that astronomers must tackle.