Hurricane might delay SpaceX-NASA return trip from ISS

The first US astronauts to reach the International Space Station on an American spacecraft in nearly a decade might not come home this weekend as scheduled because of Hurricane Isaias, NASA said Friday.

Wildfires cause bird songs to change

A new study in The Auk: Ornithological Advances suggests that wildfires change the types of songs sung by birds living in nearby forests.

Image: Barcelona, Spain

The Copernicus Sentinel-2 mission takes us over Barcelona—the second largest city in Spain.

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Coast

A coastline or seashore is the area where land meets the sea or ocean. A precise line that can be called a coastline cannot be determined due to the dynamic nature of tides. The term "coastal zone" can be used instead, which is a spatial zone where interaction of the sea and land processes occurs. Both the terms coast and coastal are often used to describe a geographic location or region; for example, New Zealand's West Coast, or the East and West Coasts of the United States.

A pelagic coast refers to a coast which fronts the open ocean, as opposed to a more sheltered coast in a gulf or bay. A shore, on the other hand, can refer to parts of the land which adjoin any large body of water, including oceans (sea shore) and lakes (lake shore). Similarly, the somewhat related term "bank" refers to the land alongside or sloping down to a river (riverbank) or to a body of water smaller than a lake. "Bank" is also used in some parts of the world to refer to an artificial ridge of earth intended to retain the water of a river or pond. In other places this may be called a levee.

While many scientific experts might agree on a common definition of the term "coast", the delineation of the extents of a coast differ according to jurisdiction, with many scientific and government authorities in various countries differing for economic and social policy reasons.

This text uses material from Wikipedia, licensed under CC BY-SA