What to know

• Millions of Europeans will contemplate the sky in awe on Wednesday as a rare total solar eclipse crosses part of the continent and plunges a swath of Spain into eerie daytime darkness.S1
• We’re just hours away from a rare celestial event: a total solar eclipse. Day will briefly turn to night across parts of northern Spain as the Moon completely blocks out the Sun, while millions more will witness a partial eclipse across Europe, Canada, the nor...S2