SpaceX CRS-10 Dragon Landing: View 2 | International Space Station

SpaceX CRS-10 Dragon Landing: View 2 | International Space Station
The SpaceX Dragon is the only commercial spacecraft currently flying that is capable of returning significant amounts of cargo to Earth from the International Space Station (ISS). Dragon landed a few hundred miles west of Baja California on March 19th. It has returned with approximately 3,600 pounds of space station cargo, ending its 10th operational cargo flight to the complex.

Learn more:

Credit: SpaceX
Image Date: March 19, 2017

Elon Musk
NASA Johnson Space Center


“The Trolls of Trollholmsund” Porsanger – Norway

“The Trolls of Trollholmsund” Porsanger – Norway

Are the names of the unusual dolomite stone formations that have given this place its name.

I took this photo just before sunset, at 01:39 in the morning! Gotta love the midnight sun up in the north! 🙂
From my photo essay:

An ancient Lappish legend tells the story of a group of trolls who wandered down from the moors of Finnmarksvidda. They were carrying a chest of gold and silver. When they came to Porsanger they wanted to enter the cliff and started to dig caves in it. But they couldn´t make the caves big enough and wandered further on.

The trolls came to a headland and had to cross the fjord in order to reach the other side. But by this time the sun was rising. They had to drop the chest they were carrying. And before they could go into hiding, the sun shone on them and they were turned to stone.


Shark Shepherds

Shark Shepherds
These incredible images are NOT a photoshopped or graphic artist drawings – they’re real photos taken underwater with live wild sharks.

Inspired to realise awareness to help protect sharks, photographer Von Wong pulled together a crew of divers in Fiji as well as in impressive array of underwater photography equipment and a champion freediver to be the model in a custom-made gown.

In his video (linked in the article Von Wong talks about how sharks are a vital part in the ocean’s ecosystem, effectively the Shepherds of the oceans. But they need our protection – without sharks, the ocean ecosystem breaks down, and in turn, the ecosystems of the planet break down.
Thus the project

Von Wong says Sharks are almost always depicted as menacing and terrifying, yet it is humans that are responsible for killing them in the millions just to make soup. I wanted to create a series of images that would help break those stereotypes and show that it is possible for us to co-exist together in perfect harmony

For each and every shot we would weigh down Amber Bourke, our champion freediver, onto the perfectly lit rock formation where light was falling. The ethereal white dress, designed specifically for this shoot by Ali Charisma, would have to be carefully placed so that it would flow beautifully into the image. When all was finally in position, we would hand over the three-piece plastic shepherds crook to amber and begin the wait.
Over the course of three days, we waited over six hours.

Though popular media would tell you that sharks come swarming at the slightest scent of blood, death and suffering, our experience with them was the complete opposite.
Similar to squirrels at a park, the white tipped reef sharks would hover around us curiously only to scamper off if anyone got too close.

Shark facts:
– Sharks are a keystone species and are responsible for the health of ocean ecosystems. They eliminate the weak, the diseased and the dead, maintaining the ecological balance and the future health of the ocean.
– Every year, tens of millions of sharks are killed by humans. On average, sharks kill less than 10 people a year.  
– Currently, shark ecotourism brings almost 1 Billion US worldwide, and is expected to grow 2 fold in the next 20 years.
– There are over 450 species of sharks, most cause no harm to humans.

H/t Søren Siim Nielsen​ and CJ Ciesla​
Ping Thila White​ and Bruce Shark​

8 Real World Enceladus Science Facts | NASA JPL

8 Real World Enceladus Science Facts | NASA JPL
Note: Click on the image and select the “More” option at the top of the screen and then choose “Download Photo” to better view this high-res infographic.

NASA’s Cassini spacecraft sampled the ocean of Saturn’s moon Enceladus, today Wednesday, Oct. 28, after it flew through the moon’s plume of icy spray.

Cassini launched in 1997 and entered orbit around Saturn in 2004. Since then, it has been studying the huge planet, its rings and its magnetic field. Here are some things to know about the mission’s close flyby of Enceladus:

— Enceladus is an icy moon of Saturn. Early in its mission, Cassini discovered Enceladus has remarkable geologic activity, including a towering plume of ice, water vapor and organic molecules spraying from its south polar region. Cassini later determined the moon has a global ocean and likely hydrothermal activity, meaning it could have the ingredients needed to support simple life.

— The flyby is Cassini’s deepest-ever dive through the Enceladus plume, which is thought to come from the ocean below. The spacecraft has flown closer to the surface of Enceladus before, but never this low directly through the active plume.

— The flyby is not intended to detect life, but it will provide powerful new insights about how habitable the ocean environment is within Enceladus.

— Cassini scientists are hopeful the flyby will provide insights about how much hydrothermal activity—that is, chemistry involving rock and hot water—is occurring within Enceladus. This activity could have important implications for the potential habitability of the ocean for simple forms of life. The critical measurement for these questions is the detection of molecular hydrogen by the spacecraft.

— Scientists also expect to better understand the chemistry of the plume as a result of the flyby. The low altitude of the encounter is, in part, intended to afford Cassini greater sensitivity to heavier, more massive molecules, including organics, than the spacecraft has observed during previous, higher-altitude passes through the plume.

— The flyby will help solve the mystery of whether the plume is composed of column-like, individual jets, or sinuous, icy curtain eruptions—or a combination of both. The answer would make clearer how material is getting to the surface from the ocean below.

— Researchers are not sure how much icy material the plumes are actually spraying into space. The amount of activity has major implications for how long Enceladus might have been active.

Credit: NASA/JPL

NASA Jet Propulsion Laboratory 
European Space Agency, ESA 
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