Imagine smoke rings seen edge-on and you may gain some insight to what's going on with the deceptive Red Rectangle, which isn't a rectangle at all. The optical illusion is the work of a pair of stars ...

The Red Rectangle Nebula doesn’t merely look modern-art cubist bizarre. Its very light is strange, its composition is food for philosophy, and it remains a hot venue of current research. Located in ...

The rectangular iceberg was photographed as part of a topographic mapping project. A college-campus-size iceberg spotted on the Antarctic Peninsula margins is upending public expectations of classic ...