Astronomy Picture of the Day . ... These are the four 8.2 meter wide telescope units of the European Southern Observatory's Very Large Telescope (VLT). A Jet from Galaxy M87 . ... Although the unusual jet was first noticed early in the twentieth century, the exact cause is still debated. ... The center of our Galaxy is obscured in visible light by dark dust that rotates with the stars in the Galactic Plane. ... This false color picture shows how the Earth glows in ultraviolet (UV) light. ...