26 Nov '11, 11pm

Oulu, Finland [image] #NASA

The city of Oulu, Finland, lies at the mouth of the Oulujoki River along the Gulf of Bothnia. The northerly location makes for cool summers and cold, dark winters. Today’s subarctic climate, however, is mild compared to that of its recent geologic history. As recently as 11,000 years ago, the area was buried under a glacier. The Landsat 7 satellite captured this image of Oulu on June 25, 2001. Urban areas are pale gray, bare ground is brown, vegetation is green, and water is navy blue. The Oulujoki River surrounds tiny islands en route to the sea in this low-lying area. Geologists surmise that during the most recent ice ages, the Fennoscandian Ice Sheet extended over a large expanse of northwestern Eurasia, reaching its greatest thickness about 20,000 years ago. The ice sprawled over Scandinavia and was thickest over the Gulf of Bothnia. The ice pushed primarily eastward a...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=76512&s...

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Oulu, Finland: Today, Finland’s coastal city of...

earthobservatory.nasa.gov 26 Nov '11, 11pm

The city of Oulu, Finland, lies at the mouth of the Oulujoki River along the Gulf of Bothnia. The northerly location makes...

NASA Earth Observato Oulu, Finland: Today, Finl...

earthobservatory.nasa.gov 26 Nov '11, 11pm

The city of Oulu, Finland, lies at the mouth of the Oulujoki River along the Gulf of Bothnia. The northerly location makes...

Snowfall on the Selenga River Delta, Russia [im...

earthobservatory.nasa.gov 27 Nov '11, 11pm

This astronaut photograph from the International Space Station reveals the Selenga River Delta, which is built out into La...

Snowfall on the Selenga River Delta, Russia: Th...

earthobservatory.nasa.gov 27 Nov '11, 11pm

This astronaut photograph from the International Space Station reveals the Selenga River Delta, which is built out into La...

Hovering on the Horizon: The limb of the Earth ...

earthobservatory.nasa.gov 25 Nov '11, 11pm

The limb of the Earth is a work of awesome beauty and a gift to science. When observed from space, the palette of gaseous ...

Hovering on the Horizon: The limb of the Earth ...

earthobservatory.nasa.gov 25 Nov '11, 11pm

The limb of the Earth is a work of awesome beauty and a gift to science. When observed from space, the palette of gaseous ...

Ship Wave Clouds over the North Sea [image] #NASA

earthobservatory.nasa.gov 24 Nov '11, 11pm

If air were visible, it would be a thing of mesmerizing beauty and motion. Air courses in streams and eddies; it rises and...

Jakobshavn Glacier [image] #NASA

Jakobshavn Glacier [image] #NASA

earthobservatory.nasa.gov 02 Dec '11, 11pm

Under the lens of a microscope or a telescope, familiar objects can appear alien because the lines of the familiar resolve...

Salar de Atacama, Chile [image] #NASA

Salar de Atacama, Chile [image] #NASA

earthobservatory.nasa.gov 28 Nov '11, 11pm

Chile’s Atacama Desert may be the driest place on Earth. Large stretches of the Atacama have gone without moisture for as ...

South Shetland Islands and Antarctica [image] #...

earthobservatory.nasa.gov 04 Dec '11, 11pm

The inclined equatorial orbit of the International Space Station (ISS) limits astronauts to nadir views of Earth—looking s...

Israel-Egypt-Gaza border region : Image of the Day

earthobservatory.nasa.gov 20 Nov '11, 11pm

A clearly visible line marks about 50 kilometers of the international border between Egypt and Israel in this astronaut ph...

Suguta Valley, Kenya [image] #NASA

earthobservatory.nasa.gov 19 Nov '11, 11pm

The Suguta Valley is one of the driest places in Kenya, and may be one of the driest places near Earth's Equator. The remo...

Israel-Egypt-Gaza border region [Image] #NASAEa...

earthobservatory.nasa.gov 20 Nov '11, 11pm

A clearly visible line marks about 50 kilometers of the international border between Egypt and Israel in this astronaut ph...