The shapes can seem to appear out of nowhere: an undulating S-like spiral streaking across the European skies or a glowing orb trailing above the North American coast. Such strange light shows ...

like that can become a huge spiral," Vance said. As to how rates would spike to 8%, there has long been a fear that foreign countries could dump their holdings of US Treasurys all at once ...

It exhibits a cross-like pattern known as diffraction spikes, caused by the star's light ... happens to lie along Hubble's line of sight. — Spiral starburst galaxy glows in gorgeous Hubble ...