NASA's Chandra X-ray Observatory has created a video showing the sounds of the Milky Way galaxy using a process known as sonification, which translates digital and visual cues into an audible signal. The sounds represent the position and brightness of objects in the MilkyWay's galactic centre, with their volume being controlled by their intensity. The process begins on the left side of the image and moves to the right, with the sounds mapped to elements found in the debris from the exploded star and high-energy data. The video was created using the sonification process, which also controls the pitch.

NASA's Hubble Space Telescope has revealed that a galaxy, Messier 90, is accelerating towards our Milky Way, a sign that the universe is expanding. The European Space Agency (ESA) and NASA operates the Hubble telescope have revealed that Messier is one of the few galaxies seen to be travelling towards the Milky Way. The galaxy is currently located roughly 60 million light-years from the Earth, but is rapidly increasing its distance. This shift towards the blue end of the visible spectrum is seen as a process known as redshift. Astronomers believe this redshift is evidence that galaxies are flying away from each other, and the further apart they are, the faster they move. If Messier continues to move, there is a potential collision between the two galaxies, but this does not necessarily predict any outcomes.

NASA's Hubble Space Telescope has captured a rare “peculiar galaxy” called NGC 772, twice the size of the Milky Way. The galaxy is located 130 million light years away and does not have a bar, unlike the Milky way which is a barred galaxy. This unusual shape is caused by the movements of a nearby satellite galaxy, which is gravitationally bound to a larger galaxy and orbits around it. However, observations suggest these galaxies may be moving too fast to be in orbit around our galaxy, leading to a potential collision that could cause the black hole at the centre of our galaxy to increase in size. Last week, the Hubble telescope also captured images of three solar eclipses simultaneously on Jupiter.

Scientists have discovered a fossil galaxy, which is believed to have been formed shortly after the creation of the Milky Way. The remnants of this galaxy account for roughly a third of the galaxy's spherical "halo" - an area made up of star clusters, gases and dust. The discovery was made using data from the Apache Point Observatory Galactic Evolution Experiment (Apogee) project. To identify the fossil galaxy's origin, the team used detailed chemical make-up and motions of tens of thousands of stars to study their chemical composition. The merger of Heracles "must have been a major event in the history of our galaxy", making the discovery an oddity as most similar massive spiral galaxies had calmer early lives.

The European Space Agency Gaia satellite has captured images of the Blue Ring Nebula, a phase that occurs after the merger of two stars. The red supergiant star Betelgeuse in Orion experienced unprecedented dimming in 2019, according to these images. The image was taken using the European Southern Observatory's Very Large Telescope in January. An infrared image of Apep, a Wolf-Rayet star binary system 8,000 light-years from Earth, also captured. An artist's illustration shows an unusual star system, GW Orionis, whose system's circumstellar disk is broken, resulting in misaligned rings around its three stars. This image also shows a simulation of two spiral black holes merging and emitting gravitational waves.