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.

In one of the deadliest attacks in Turkey in recent years, two car bombs exploded near the border with Syria on Saturday, killing 43 and wounding 140 others. Turkish officials blamed the attack on a group linked to Syria, and a deputy prime minister called the neighboring country's intelligence service and military "the usual suspects."

The blasts, which were 15 minutes apart and hit the town of Reyhanli's busiest street, raised fears that Turkey could increasingly be drawn into Syria's brutal civil war.

Turkey already hosts Syria's political opposition and rebel commanders, has given shelter to hundreds of thousands of Syrian refugees and in the past retaliated against Syrian shells that landed in Turkey.

A youth poses while holding two fishes before his face in Iraq's southern port city of al-Faw, 90 kilometres south of Basra near the Shatt al-Arab and the Gulf, on May 18, 2020. In Iraq, a national lockdown to halt the COVID-19 coronavirus pandemic has found some unexpected fans: local businesses who no longer have to compete with Turkish, Iranian or Chinese imports. Those countries, as well as Saudi Arabia, Jordan and Kuwait, typically flood Iraqi markets with inexpensive products at prices local producers can't compete with. (Photo by Hussein Faleh/AFP Photo)

Two chimpanzees share a piece of watermelon at Taronga Zoo on December 23, 2010 in Sydney, Australia. (Photo by Rick Stevens/Taronga Zoo via Getty Images)

“Car2go fleet is located throughout the greater downtown area and can be accessed on-demand or booked 24 hours in advance. The members may use the vehicle for as long as they like, without committing to a specific return time or return location”. – Wikipedia

Photo: A car2go employee shows how members can use a smartphone or iPad app to locate and reservec car2go vehicles March 22, 2012 in Washington, DC. Beginning March 24, car2go will offer the first free-floating car-sharing service in Washington and Portland, Oregon, where customers can use the smartphone app within the 34-square-mile “Home Area”. After paying a one-time $35 membership fee, drivers can then rent the Smart Fortwo vehicles by the minute, paying only for the time they use the vehicle, with discounted rates for hourly and daily use. (Photo by Chip Somodevilla/Getty Images)

“Australian Aborigines are those people regarded as indigenous to the Australian continent. In the High Court of Australia, Australian Aborigines have been specifically identified as a group of people who share, in common, biological ancestry back to the original occupants of the continent”. – Wikipedia

Photo: Aboriginal women washing their hair with sand at Arnhem land in the Northern Territory of Australia. 1st January 1950. (Photo by Three Lions)

The Royal Observatory just announced its Astronomy Photographer Of The Year 2013 winners. Australian photographer Mark Gee was chosen among a thousand amateur and professional photographers around the globe to win the top title. His work is part of an exhibition of the winning photographers, which opened on Sept. 19 at the Royal Observatory Greenwich. The Royal Observatory shared with us the winners and notable mentions of the competition. Their descriptions of the prizewinners can be found below the images.

Two boys in the Gorbals area of Glasgow, UK on January 31, 1948. The Gorbals tenements were built quickly and cheaply in the 1840s, providing housing for Glasgow's burgeoning population of industrial workers. Conditions were appalling; overcrowding was standard and sewage and water facilities inadequate. The tenements housed about 40,000 people with up to eight family members sharing a single room, 30 residents sharing a toilet and 40 sharing a tap. By the time this photograph was taken 850 tenements had been demolished since 1920. Redevelopment of the area began in the late 1950s and the tenements were replaced with a modern tower block complex in the sixties. (Photo by Bert Hardy/Getty Images)