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This image shows the dust torus around a super-massive black hole. Black holes lurk at the centres of active galaxies in environments not unlike those found in violent tornadoes on Earth. Just as in a tornado, where debris is often found spinning about the vortex, so in a black hole, a dust torus surrounds its waist. In some cases astronomers can look along the axis of the dust torus from above or from below and have a clear view of the black hole. Technically these objects are then called type 1 sources. Type 2 sources lie with the dust torus edge-on as viewed from Earth so our view of the black hole is totally blocked by the dust over a range of wavelengths from the near-infrared to soft X-rays.
This new image shows the dramatic shape and colour of the Ring Nebula, otherwise known as Messier 57.
From Earth’s perspective, the nebula looks like a simple elliptical shape with a shaggy boundary
This image from the NASA/ESA Hubble Space Telescope reveals an ancient, glimmering ball of stars called NGC 1466. It is a globular cluster - a gathering of stars all held together by gravity - that is slowly moving through space on the outskirts of the Large Magellanic Cloud, one of our closest galactic neighbours.
This new image from the NASA/ESA Hubble Space Telescope captures two galaxies of equal size in a collision that appears to resemble a ghostly face. This observation was made on 19 June 2019 in visible light by the telescope’s Advanced Camera for Surveys
