We're all made of Stardust...
  Looking Back at an Eclipsed Earth   Image Credit:  PHL @ UPR Arecibo, NASA, EUMETSAT, NERC Satellite Receiving Station, U. Dundee
 Explanation:  What’s that dark spot on planet Earth? It’s the shadow of the Moon. The above image of Earth was taken last week by MTSAT during an annular eclipse of the Sun. The dark spot appears quite unusual as clouds are white and the oceans are blue in this color corrected image. Earthlings residing within the dark spot would see part of the Sun blocked by the Moon and so receive less sunlight than normal. The spot moved across the Earth at nearly 2,000 kilometers per hour, giving many viewers less than two hours to see a partially eclipsed Sun. MTSAT circles the Earth in a geostationary orbit and so took the above image from about three Earth-diameters away. Sky enthusiasts might want to keep their eyes pointed upward this coming week as a partial eclipse of the Moon will occur on June 4 and a transit of Venus across the face of the Sun will occur on June 5.

Looking Back at an Eclipsed Earth
Image Credit: PHL @ UPR Arecibo, NASA, EUMETSAT, NERC Satellite Receiving Station, U. Dundee

Explanation: What’s that dark spot on planet Earth? It’s the shadow of the Moon. The above image of Earth was taken last week by MTSAT during an annular eclipse of the Sun. The dark spot appears quite unusual as clouds are white and the oceans are blue in this color corrected image. Earthlings residing within the dark spot would see part of the Sun blocked by the Moon and so receive less sunlight than normal. The spot moved across the Earth at nearly 2,000 kilometers per hour, giving many viewers less than two hours to see a partially eclipsed Sun. MTSAT circles the Earth in a geostationary orbit and so took the above image from about three Earth-diameters away. Sky enthusiasts might want to keep their eyes pointed upward this coming week as a partial eclipse of the Moon will occur on June 4 and a transit of Venus across the face of the Sun will occur on June 5.

expose-the-light:

Iconic Images of Earth from Space

Blue Marble: NASA has produced several Blue Marble images. The original, taken by the crew of Apollo 17, shows the Eastern Hemisphere and is thought to be one of the most famous and widely distributed images of Earth ever. Above-left, one of the most recent Blue Marble images was created by stitching together satellite imagery and reveals the Western Hemisphere in all its glory. The first pictures from space were not nearly as routine as the Blue Marbles are now.

1. A “Blue Marble” image of the Earth taken from the VIIRS instrument aboard NASA’s most recently launched Earth-observing satellite, Suomi NPP. This composite image uses a number of swaths of the Earth’s surface taken on Jan. 4, 2012. 

First Picture of Earth and Moon in Single Frame: It was incredible to see Earth from deep space for the first time. It was yet another amazing experience to see both our world and its moon suspended in the black void together for the first time. That feat was accomplished by Voyager 1 on its way to the outer planets.

2. This NASA picture of the Earth and the moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded Sept. 18, 1977, by Voyager 1 when it was 7.25 million miles (11.66 million kilometers) from Earth. The moon (top) is beyond the Earth as viewed by the space probe. Because the Earth much brighter than the moon, the moon was artificially brightened by a factor of three by computer enhancement so that both bodies would show clearly in the image.

Earthrise: Imagine coming around the moon in a spaceship, looking out the window, and being the first humans to see your own planet rise. This iconic image of the Earth rising, popularly called the “Earthrise” picture, is the first of its kind taken by an astronaut from lunar orbit.

3. This view of the rising Earth greeted the Apollo 8 astronauts as they came from behind the moon after the lunar orbit insertion burn. The photo is displayed here in its original orientation, though it is more commonly viewed with the lunar surface at the bottom of the photo. Earth is about five degrees left of the horizon in the photo. The unnamed surface features on the left are near the eastern limb of the moon as viewed from Earth. The lunar horizon is approximately 780 kilometers from the spacecraft. The height of the photographed area at the lunar horizon is about 175 kilometers.

Moonrise from Earth Orbit: The horizon is tilted and seems far away. The moon appears to float on Earth’s atmosphere. It’s one of many incredible views that can come only from space, yet by name it’s totally familiar: a moonrise. 

4.  A quarter moon rises above Earth’s horizon and above the airglow of our atmosphere. The image was made with a digital still camera on the final mission of the Space Shuttle Columbia. Columbia’s crew was killed on Feb. 1, 2003, when the shuttle broke up on re-entry into Earth’s atmosphere.


hahahyena:

A photograph taken by Cassini Spacecraft from the surface of Saturn’s moon, Titan.
The image shows the sun eclipsed by saturn. To the left of the brightest of rings you’ll see a small, pale blue dot…. that is Earth. 

hahahyena:

A photograph taken by Cassini Spacecraft from the surface of Saturn’s moon, Titan.

The image shows the sun eclipsed by saturn. To the left of the brightest of rings you’ll see a small, pale blue dot…. that is Earth. 

the-star-stuff:

Terrestrial Planets

Also known as rocky planets, these bodies are composed primarily of rock and metal and have very high densities. They also tend to be relatively small in size and have slow periods of rotation. The terrestrial planets in our solar system are Mercury, Venus, Earth, and Mars. They are the planets closest to the Sun. Terrestrial planets tend to have very few natural satellites, or moons. Of the four terrestrial planets in our solar system, only two have moons. Earth has one moon while Mars has two.

Images Credit: solarsystem.nasa.gov

Flying Over the Earth at Night
Video Credit: Gateway to Astronaut Photography, NASA ; Compilation: Bitmeizer (YouTube);
Music: Freedom Fighters (Two Steps from Hell)

Explanation: Many wonders are visible when flying over the Earth at night. A compilation of such visual spectacles was captured recently from the International Space Station (ISS) and set to rousing music. Passing below are white clouds, orange city lights, lightning flashes in thunderstorms, and dark blue seas. On the horizon is the golden haze of Earth’s thin atmosphere, frequently decorated by dancing auroras as the video progresses. The green parts of auroras typically remain below the space station, but the station flies right through the red and purple auroral peaks. Solar panels of the ISS are seen around the frame edges. The ominous wave of approaching brightness at the end of each sequence is just the dawn of the sunlit half of Earth, a dawn that occurs every 90 minutes.

dvdp:

Hundreds of pictures of Earth, each taken at about 6AM , showing the terminator - the day/night line - over the course of one year (2010sep-2011sep).Taken by METEOSAT-9 Earth-observing satellite.Credit: NASA Earth Observatory

dvdp:

Hundreds of pictures of Earth, each taken at about 6AM , showing the terminator - the day/night line - over the course of one year (2010sep-2011sep).
Taken by METEOSAT-9 Earth-observing satellite.

Credit: NASA Earth Observatory

Earth and Moon, as seen from Mars.
The image was acquired on October 3, 2007, by the HiRISE camera on NASA’s Mars Reconnaissance Orbiter.  At the time the image was taken, Earth was 142 million kilometers (88 million miles) from Mars, giving the HiRISE image a scale of 142 kilometers (88 miles) per pixel, an Earth diameter of about 90 pixels and a moon diameter of 24 pixels. The phase angle is 98 degrees, which means that less than half of the disk of the Earth and the disk of the moon have direct illumination. We could image Earth and moon at full disk illumination only when they are on the opposite side of the sun from Mars, but then the range would be much greater and the image would show less detail.
Image Credit: NASA/JPL-Caltech/University of Arizona

Earth and Moon, as seen from Mars.

The image was acquired on October 3, 2007, by the HiRISE camera on NASA’s Mars Reconnaissance Orbiter.

At the time the image was taken, Earth was 142 million kilometers (88 million miles) from Mars, giving the HiRISE image a scale of 142 kilometers (88 miles) per pixel, an Earth diameter of about 90 pixels and a moon diameter of 24 pixels. The phase angle is 98 degrees, which means that less than half of the disk of the Earth and the disk of the moon have direct illumination. We could image Earth and moon at full disk illumination only when they are on the opposite side of the sun from Mars, but then the range would be much greater and the image would show less detail.

Image Credit: NASA/JPL-Caltech/University of Arizona


Pale Blue Dot
“We succeeded in taking that picture [from deep space], and, if you  look at it, you see a dot. That’s here. That’s home. That’s us. On it,  everyone you ever heard of, every human being who ever lived, lived out  their lives. The aggregate of all our joys and sufferings, thousands of  confident religions, ideologies and economic doctrines, every hunter and  forager, every hero and coward, every creator and destroyer of  civilizations, every king and peasant, every young couple in love, every  hopeful child, every mother and father, every inventor and explorer,  every teacher of morals, every corrupt politician, every superstar,  every supreme leader, every saint and sinner in the history of our  species, lived there on a mote of dust, suspended in a sunbeam.
The earth is a very small stage in a vast cosmic arena. Think of the  rivers of blood spilled by all those generals and emperors so that in  glory and in triumph they could become the momentary masters of a  fraction of a dot. Think of the endless cruelties visited by the  inhabitants of one corner of the dot on scarcely distinguishable  inhabitants of some other corner of the dot. How frequent their  misunderstandings, how eager they are to kill one another, how fervent  their hatreds. Our posturings, our imagined self-importance, the  delusion that we have some privileged position in the universe, are  challenged by this point of pale light. Our planet is a lonely speck in  the great enveloping cosmic dark. In our obscurity – in all this  vastness – there is no hint that help will come from elsewhere to save  us from ourselves. It is up to us. It’s been said that astronomy is a  humbling, and I might add, a character-building experience. To my mind,  there is perhaps no better demonstration of the folly of human conceits  than this distant image of our tiny world. To me, it underscores our  responsibility to deal more kindly and compassionately with one another  and to preserve and cherish that pale blue dot, the only home we’ve ever  known.”
-Carl Sagan

Pale Blue Dot

“We succeeded in taking that picture [from deep space], and, if you look at it, you see a dot. That’s here. That’s home. That’s us. On it, everyone you ever heard of, every human being who ever lived, lived out their lives. The aggregate of all our joys and sufferings, thousands of confident religions, ideologies and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilizations, every king and peasant, every young couple in love, every hopeful child, every mother and father, every inventor and explorer, every teacher of morals, every corrupt politician, every superstar, every supreme leader, every saint and sinner in the history of our species, lived there on a mote of dust, suspended in a sunbeam.

The earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that in glory and in triumph they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of the dot on scarcely distinguishable inhabitants of some other corner of the dot. How frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. Our posturings, our imagined self-importance, the delusion that we have some privileged position in the universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity – in all this vastness – there is no hint that help will come from elsewhere to save us from ourselves. It is up to us. It’s been said that astronomy is a humbling, and I might add, a character-building experience. To my mind, there is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly and compassionately with one another and to preserve and cherish that pale blue dot, the only home we’ve ever known.”

-Carl Sagan

 Blue Marble Earth from Suomi NPP   Image Credit:  NASA/NOAA/GSFC/Suomi NPP/VIIRS/Norman Kuring
 Explanation:  Behold one of the more detailed images of the Earth yet created.  This Blue Marble Earth montage shown above — created from photographs taken by the Visible/Infrared Imager Radiometer Suite (VIIRS) instrument on board the new Suomi NPP satellite — shows many stunning details of our home planet.  The Suomi NPP satellite was launched last October and renamed last week after Verner Suomi, commonly deemed the father of satellite meteorology.  The composite was created from the data collected during four orbits of the robotic satellite  taken earlier this month and digitally projected onto the globe.  Many features of North America and the Western Hemisphere are particularly visible on a high resolution version of the image.  Previously, several other Blue Marble Earth images have been created, some at even higher resolution.
Blue Marble Earth from Suomi NPP
Image Credit: NASA/NOAA/GSFC/Suomi NPP/VIIRS/Norman Kuring

Explanation: Behold one of the more detailed images of the Earth yet created. This Blue Marble Earth montage shown above — created from photographs taken by the Visible/Infrared Imager Radiometer Suite (VIIRS) instrument on board the new Suomi NPP satellite — shows many stunning details of our home planet. The Suomi NPP satellite was launched last October and renamed last week after Verner Suomi, commonly deemed the father of satellite meteorology. The composite was created from the data collected during four orbits of the robotic satellite taken earlier this month and digitally projected onto the globe. Many features of North America and the Western Hemisphere are particularly visible on a high resolution version of the image. Previously, several other Blue Marble Earth images have been created, some at even higher resolution.