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Posts tagged earth

419 notes &

the-star-stuff:

Pale Blue Dots: Iconic Images of Earth From Space

The handful of rare glimpses have demonstrated that “Earth is a very small stage in a vast cosmic arena,” wrote the late Carl Sagan in Pale Blue Dot: A Vision of the Human Future in Space.

1. Voyager 1. Images: NASA [high-resolution version]

2. Rosetta. Image: ESA/MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA [high-resolution version]

3. Apollo Missions. Image: NASA [high-resolution version]

4.Mariner 10. Image: NASA/JPL/Northwestern University [high-resolution version]

5. Galileo. Image: NASA [high-resolution version]

6. Near. Image: NASA [high-resolution version]

7. Juno. Image: NASA/JPL-Caltech [high-resolution version]

Filed under science history earth pale blue dot carl sagan

128 notes &

the-star-stuff:

“Most Amazing Earth Image” From the Other Side
NASA said that their Blue Marble 2012 was “the most amazing image of Earth ever.” Now they have released the other half, answering to popular demand.
This look at the East hemisphere “is a composite of six separate orbits taken on January 23, 2012 by the Suomi National Polar-orbiting Partnership satellite. Both of these new ‘Blue Marble’ images are images taken by a new instrument flying aboard Suomi NPP, the Visible Infrared Imaging Radiometer Suite.”
[NASA Goddard Flickr]

the-star-stuff:

“Most Amazing Earth Image” From the Other Side

NASA said that their Blue Marble 2012 was “the most amazing image of Earth ever.” Now they have released the other half, answering to popular demand.

This look at the East hemisphere “is a composite of six separate orbits taken on January 23, 2012 by the Suomi National Polar-orbiting Partnership satellite. Both of these new ‘Blue Marble’ images are images taken by a new instrument flying aboard Suomi NPP, the Visible Infrared Imaging Radiometer Suite.”

[NASA Goddard Flickr]

Filed under science space astronomy universe earth blue marble pale blue dot sexyness news eudcation portrait portrait of earth

78 notes &

the-star-stuff:

Giant Veil of “Cold Plasma” Discovered High Above Earth
Clouds of charged particles stretch a quarter the way to the moon, experts say.
Clouds of “cold plasma” reach from the top of Earth’s atmosphere to at least a quarter the distance to the moon, according to new data from a cluster of European satellites.
Earth generates cold plasma—slow-moving charged particles—at the edge of space, where sunlight strips electrons from gas atoms, leaving only their positively charged cores, or nuclei.
Researchers had suspected these hard-to-detect particles might influence incoming space weather, such as this week’s solar flare and resulting geomagnetic storm. That’s because solar storms barrage Earth with similar but high-speed charged particles.
Still, no one could be certain what the effects of cold plasma might be without a handle on its true abundance around our planet.
“It’s like the weather forecast on TV. It’s very complicated to make a reasonable forecast without the basic variables,” said space scientist Mats André, of theSwedish Institute of Space Physics.
“Discovering this cold plasma is like saying, Oh gosh, there are oceans here that affect our weather,” he said.
Illustration courtesy J. Huart, ESA

the-star-stuff:

Giant Veil of “Cold Plasma” Discovered High Above Earth

Clouds of charged particles stretch a quarter the way to the moon, experts say.

Clouds of “cold plasma” reach from the top of Earth’s atmosphere to at least a quarter the distance to the moon, according to new data from a cluster of European satellites.

Earth generates cold plasma—slow-moving charged particles—at the edge of space, where sunlight strips electrons from gas atoms, leaving only their positively charged cores, or nuclei.

Researchers had suspected these hard-to-detect particles might influence incoming space weather, such as this week’s solar flare and resulting geomagnetic storm. That’s because solar storms barrage Earth with similar but high-speed charged particles.

Still, no one could be certain what the effects of cold plasma might be without a handle on its true abundance around our planet.

“It’s like the weather forecast on TV. It’s very complicated to make a reasonable forecast without the basic variables,” said space scientist Mats André, of theSwedish Institute of Space Physics.

“Discovering this cold plasma is like saying, Oh gosh, there are oceans here that affect our weather,” he said.

Illustration courtesy J. Huart, ESA

Filed under science space astronomy universe cosmos cold plasma earth

164 notes &

ianbrooks:

Astronaut Dale A. Gardner, having just completed the major portion of his second extravehicular activity (EVA) period in three days, holds up a “for sale” sign. Astronaut Joseph P. ALlen IV, who also participated in the two EVA’s, is reflected in Gardner’s helmet visor. A portion of each of two recovered satellites is in the lower right corner, with Westar nearer Discovery’s aft.
Not a fake! But a real life, legit photobombing of the Earth.
(via: nasaimages)

ianbrooks:

Astronaut Dale A. Gardner, having just completed the major portion of his second extravehicular activity (EVA) period in three days, holds up a “for sale” sign. Astronaut Joseph P. ALlen IV, who also participated in the two EVA’s, is reflected in Gardner’s helmet visor. A portion of each of two recovered satellites is in the lower right corner, with Westar nearer Discovery’s aft.

Not a fake! But a real life, legit photobombing of the Earth.

(via: nasaimages)

Filed under space nasa astronaut for sale sign dale gardner earth