NASA space telescope view of Pegasus: Stars, dust and a distant galaxy

A spectacular telescopic view of the constellation Pegasus reveals a mesmerising portrait of the universe, spanning a region of the night sky larger than a Full Moon. In this single frame, brilliant stars of the Milky Way sparkle with cross-shaped diffraction spikes, while faint, cirrus-like dust clouds drift delicately above the galactic plane, scattering starlight into a ghostly glow. Adding to the wonder, a spiral galaxy millions of light-years away appears to emerge from behind the veil of dust. Together, these elements create a breathtaking cosmic tableau that unites the nearby and the distant in one dazzling scene.The brightest stars in this telescopic view belong to our own Milky Way galaxy, shining brilliantly against the dark expanse of space. Many appear with striking cross-shaped rays, known as diffraction spikes, a familiar effect caused by the internal supports of reflecting telescopes. While these patterns are not features of the stars themselves, they add drama and depth to the scene, making the stars appear even more luminous.Surrounding them is a faint yet widespread glow created by interstellar dust clouds. These delicate, cirrus-like formations hover above the Milky Way’s galactic plane and softly scatter starlight, producing a subtle shimmer. Their presence gives the image a textured, almost ghostly quality, reminding us that space between the stars is far from empty, it is filled with the raw material that shapes galaxies and fuels the cycle of cosmic evolution.Astronomers refer to these faint clouds as galactic cirrus, also known as integrated flux nebulae. They are closely linked to the Milky Way’s molecular clouds, the cold and dense regions of space where dust and gas collect. Unlike bright star-forming nebulae, galactic cirrus is more elusive, visible only through deep imaging techniques.MBM 54: A diffuse cloud in the Milky WayThe central feature of the image is a diffuse cloud catalogued as MBM 54. Situated less than a thousand light-years away, MBM 54 drifts within our galaxy, filling the frame with its faintly illuminated dust. Though nearby on a cosmic scale, its subtle patterns dominate the entire field of view.NGC 7497: A galaxy behind the dustSeemingly entangled within the dusty veil of MBM 54 is the spiral galaxy NGC 7497. Despite appearances, this galaxy lies far beyond, at a staggering distance of 60 million light-years. Positioned almost edge-on near the centre of the frame, NGC 7497 reveals its spiral arms and dust lanes, structures that strikingly resemble those of our own Milky Way.The interplay between MBM 54 and NGC 7497 makes this view particularly captivating. Local dust clouds just hundreds of light-years away appear superimposed over a galaxy millions of light-years distant. Yet, their colours and textures echo one another, reminding us that stars, dust, and galaxies follow universal patterns across the cosmos, revealing astonishing beauty, hidden structures, and intricate connections that highlight the profound unity and timeless rhythm of the universe across unimaginable distances.Also read | New Hubble photo shows cotton candy-like nebula in a nearby dwarf galaxy