ALT A composite image of a radio wave formation that looks a lot like a treble clef musical symbol, hovering in the midst of two colliding galaxy clusters. There are many specks of light set against the blackness of space; those are galaxies and stars. At the center of the image is a large, oval, blue-purple cloud with ragged edges. In the middle of the purple field, tilting slightly to our left, is what appears to be a giant treble clef, loosely drawn with a neon pink marker. Like the musical notation for which it's named, the formation has a strong vertical stroke with a continuous, fluid line swooping back and forth as it moves from top to bottom.
ALT A dark brown dust structure swathes across the center of a vista of glowing red gas, interspersed with bright stars.
ALT Artist’s concept of a brown dwarf floating in space. A large sphere with swirling crimson and orange clouds against a dark purple atmosphere dominates the center. Behind it, scattered stars and a hazy band of the Milky Way cross the black background diagonally from upper left to lower right. The image is watermarked “Artist’s concept” and “Credit: NASA/JPL-Caltech.”
