Tethered satellites proposed to find how Moon got 'tattoos'
NASA is studying a mission concept involving two miniature satellites called CubeSats connected by a tether that could help understand how the Moon got its "tattoos", swirling light-dark patterns found across its surface. The concept proposes to place the pair of 10-cm-wide satellites connected by a 180-km-long tether in lunar orbit with one CubeSat about 10 km from the surface.