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Enhancer selectivity in space and time: from enhancer–promoter interactions to promoter activation

Gene regulation in animals depends chiefly on enhancers, yet the underlying mechanisms are poorly understood. This Review discusses enhancer–promoter interactions and transcription activation, focusing on how enhancer–promoter selectivity is achieved and on recent technical advances that may provide new insights into transcription activation.

Delta adds another eclipse flight as companies look to capitalize on solar event

Passengers who book a special Delta flight will have the chance to witness the total solar eclipse in April from a unique vantage point: 30,000 feet in the air.

The airline announced Monday that it will operate a flight on April 8 from Dallas-Fort Worth to Detroit, timed to give people on board the chance to spend as much time as possible within the eclipse’s “path of totality.”

The eclipse is expected to be a major event because it will pass over several densely populated areas of North America, crossing Mexico, the continental U.S. and a small part of eastern Canada. In the U.S. alone, millions of skywatchers from Texas to Maine will have the chance to witness the rare astronomical event.

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