Jacob's Well is a perennial karstic spring in the Texas Hill Country flowing from the bed of Cypress Creek, located northwest of Wimberley, Texas. The twelve foot (four meter) diameter mouth of the spring serves as a popular swimming spot for the local land owners whose properties adjoin Cypress Creek. From the opening in the creek bed, Jacob's Well cave descends vertically for about thirty feet (ten meters), then continues downward at an angle through a series of silted chambers separated by narrow restrictions, finally reaching a depth of one hundred and twenty feet (forty meters). Until the modern era, the Trinity Aquifer-fed natural artesian spring gushed water from the mouth of the cave, with a measured flow in 1924 of one hundred and seventy gallons per second (six hundred and forty liters per second) discharging six feet (two meters) into the air. The spring is the greatest source of water recharging the Edwards Aquifer.

“The scientists behind NASA's $2.5 billion Curiosity rover mission on Mars on Tuesday explained the nature of a tiny, gleaming "flower" embedded in Red Planet rock, and revealed where they'll be using the SUV-sized robot's drill for the first time”. – Alan Boyle via NBCNews.com

Photo: Scientists say that a “Martian flower”, seen here in an image from the Curiosity rover's Mars Hand Lens Imager, is a 2-millimeter-wide grain or pebble that's embedded in the surrounding rock. Another, darker-colored mineral grain can be seen above and to the left. (Photo by NASA)

“Felix Baumgartner (born 20 April 1969 in Salzburg, Austria) is a skydiver and a BASE jumper. He is renowned for the particularly dangerous nature of the stunts he has performed during his career. Baumgartner spent time in the Austrian military where he practiced parachute jumping, including training to land on small target zones”. – Wikipedia

Photo: Pilot Felix Baumgartner of Austria is seen before his jump during the first manned test flight for Red Bull Stratos on March 15, 2012 in Roswell, New Mexico. In this test he reach the altitude 21800 meters (71500 ft) and landed safely near Roswell. Red Bull Stratos is a mission to the edge of the earths atmosphere, where upon reaching altitude of 120,000 feet by helium baloon, pilot and basejumper Felix Baumgartner will then freefall to the ground in an attempt to break the speed of sound. (Photo by Jay Nemeth/Red Bull via Getty Images)

Some people think of trolls as nothing but savage beast, yet others realize that beneath their rock-hard skin hides a gentle kind heart. Ivar Rodningem is one of the people who knows the true nature of trolls. Though these creatures look unruly, it is just the way they were born. Trolls come in all shapes and sizes. Some are small, some are large, and some are simply enormous. They help each other out, though elders tend to be loners, preferring the company of their own thoughts to anybody else. You shouldn’t run for your life if you ever meet a troll, though we wouldn’t recommend pestering them, as they are mighty strong, even the little ones.

There are many ways to interpret the creations of Yoshitoshi Kanemaki, whose works usually involve sculptures of people where two or more characters have merged into a single being. Possibly, Yoshitoshi Kanemaki is trying to express through his sculptures that everyone’s soul is multifaceted. Good emotions are mixed with the bad, love is mixed with hate, contempt with admiration. How often do you hear that a person loves someone deeply, while doing completely horrendous things, unable to see that he or she is destroying their object of love? Nevertheless, we should be thankful to the nature for all the different emotions that we are able to feel. Unlike animals, who only show simple forms of emotions, such as anger, happiness, and a few others, human soul is much deeper, allowing us to feel a full plethora of emotions. (Photo by Yoshitoshi Kanemaki)

Photo taken on September 19, 2015 shows a baby Brazilian opossum at the “Parque Estoril” zoo in Sao Bernardo do Campo of Sao Paulo, Brazil. According to local press, the “Parque Estoril” zoo houses currently 23 orphan cubs of wild animals rescued in the south region of Sao Paulo, victims of illegal wildlife trade or problems caused by urban growth. According to the zoo, all the animals arrived in the last three months, and many of them, not being able to be reintroduced to their natural habitat, will be used as examples in environmental education classes. (Photo by Rahel Patrasso/Xinhua via ZUMA Wire)

A Hypsiboas crepitans frog is pictured at a terrarium in Caracas November 30, 2015. Venezuelan frogs and toads are in critical danger due to climate change as rising temperatures complicate reproduction and spread a deadly fungus, say scientists, who liken the species to canaries in a coalmine warning of imminent danger. The survival of a group of nearly 20 frog and toad species, which top Venezuela's list of endangered species, may rest on a small group of academics in a Caracas laboratory attempting to recreate the amphibians' natural reproductive conditions. (Photo by Carlos Garcia Rawlins/Reuters)

“I'm Josh Fancher, a 21 year old with an avid interest in photography, including macro, nature and wildlife, night photography, landscapes, cityscapes and architectural photography. Inspired by the beautiful and amazing water drop photography of Martin Waugh, I started doing water drop collisions in December of 2007. I use a 105mm Micro Nikkor lens for water drops, along with a pair of Nikon SB 600 flashes. I recently got a StopShot system (Nov 2009), which makes timing a lot easier. Before then, timing was manual, with an eye dropper, eye-hand coordination, and a lot of patience” – Josh Fancher. (Photo by Josh Fancher)