The geyser Old Faithful was first documented and named on this day in history, Sept. 18, 1870, by the explorer Nathanial Langford.

Langford, who was exploring Yellowstone Park as part of the Washburn-Doane-Langford expedition, wrote in his journal that he had spotted a geyser that erupted quite frequently. 

"It spouted at regular intervals nine times during our stay, the columns of boiling water being thrown from 90 to 125 feet at each discharge, which lasted from 15 to 20 minutes," wrote Langford. 

ON THIS DAY IN HISTORY, SEPTEMBER 17

"We gave it the name of ‘Old Faithful,’" he wrote. 

A year later, in 1871, Old Faithful was once again spotted and documented by geologist Ferdinand V. Hayden, notes the United States Geological Survey website.

Hayden, who was the leader of the 1871 geological survey that led to the establishment of Yellowstone as a national park, wrote that "this geyser was named by Mr. N. P. Langford, and well sustains the reputation given it by the Doane and Washburn expedition of 1870. It has been called the Guardian of the Valley."

He added, "It is so regular in its operations and they occur so frequently that it has afforded unusual facilities for observation."

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Old Faithful in northwestern Wyoming remains a popular tourist attraction in the century and a half since it was discovered. 

It receives about 4 million visitors each year, said the National Parks Service. 

It is located in the Upper Geyser Basin in the southwest section of Yellowstone, says the National Park Service website.

"The geyser-viewing area is the most accessible and visitor-friendly in the park with bench seating, a large parking lot and a beautiful visitor center that tracks the time, height and length of an eruption to predict the next eruption," says the National Parks Service.

True to its name, Old Faithful erupts on a semi-regular schedule each day. 

Each eruption lasts anywhere from 90 seconds to five minutes, said the National Parks Service, and water can shoot as high as 180 feet in the air. 

Following each eruption, staff gets to work predicting the next time Old Faithful will blow.

"These eruptions are predicted with a 90% confidence rate, within a 10-minute variation, based on the duration and height of the previous eruption," said the National Parks Service.

"This is done by good old-fashioned observation, timing with a stopwatch and writing in a log book," the Parks Service added.

Presently, Old Faithful erupts every 44 to 125 minutes, with an average interval of 74 minutes, says the National Parks Service. 

That works out to about 20 eruptions per day. 

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And while Old Faithful has slowed down since its discovery, this is something tourists need not worry about, according to the experts.

"Prior to the 1959 earthquake, Old Faithful erupted 21 times per day," said the National Parks Service. 

"That’s a significant decrease in activity for geologists tracking each eruption, but to visitors seeing one or two eruptions … it looks just fine," they said. 

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It was the Miami Dolphins' pass game that excelled in Week 1, but running back Raheem Mostert shined to help defeat the New England Patriots, 24-17, on Sunday night. 

The Dolphins improved to 2-0, while the Patriots fell to 0-2 on the season. 

For most of the night, Miami was in control of the game, using its offensive firepower and aggressive defense to have a one-touchdown lead late in the game. However, after a Jason Sanders missed 55-yard field goal, the Patriots had a chance to tie it up with great field position. 

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Mac Jones couldn't get the job done last week against the Philadelphia Eagles when the Patriots were down five with a chance for a game-winning drive. Jones had a chance at redemption here, but he wasn't able to execute yet again. 

Miami’s defense gave Jones and the Patriots’ offense fits all night long, and it continued in the two-minute drill as Bradley Chubb sacked Jones for the fourth team sack on the night. 

On fourth down, needing to get four yards to keep the drive going, Jones found his tight end (and former Dolphin) Mike Gesicki on a crossing route. But Gesicki was clearly going to be short, so he thought on the fly by throwing the ball backward to offensive lineman Cole Strange to give the Patriots a chance to maybe break the line to gain.

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Strange spun and fell to the turf, and it was initially called a first down. However, video replay showed that Strange was too short, and the Dolphins celebrated knowing the game was over. 

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Miami's defense was making the correct plays all game long, and it started when New England was forced to punt on its first drive after going just 21 yards on eight plays. 

That was followed by a fumble by Pop Douglas, who didn’t see Chubb flying in behind him on a catch-and-run and throwing a hammer fist to get the ball out. 

The Dolphins’ offense would capitalize on that opportunity, going 11 plays and 73 yards with a Raheem Mostert touchdown from eight yards out moving Miami’s lead to 10-0. 

While last week was a big passing week for the Dolphins, it was the run game in New England that led the way. Mostert finished with a game-high 121 yards on 18 carries with two touchdowns. 

After punting on its next drive, the Patriots were finally able to get on the board with a 49-yard field for Chad Ryland, who tallies his first field goal in the NFL. 

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But just before the end of the first half, the Dolphins found the end zone once more, and it was Tua Tagovailoa finding Tyreek Hill – his favorite target in Week 1 – for a two-yard score

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New England was finally able to find the end zone in the fourth quarter after forcing a three-and-out on Miami. It was Jones finding Hunter Henry, who scored twice in Week 1, for a six-yard score to pull within a touchdown. 

That’s when momentum started to go the Patriots’ way, and rookie cornerback Christian Gonzalez brought even more to his sideline when he intercepted Tagovailoa, who was looking for a deep ball to Hill. It was Gonzalez’s first interception of his young career. 

However, Miami’s defense got to Jones again on the ensuing drive. Andrew Van Ginkel, who wreaked havoc on the Patriots’ offensive line all night, got a sack that pushed Jones back 10 yards deep in Patriots’ territory. 

The Patriots were forced to punt, and the Dolphins wasted no time getting their two-touchdown lead back. Mostert found the end zone again, but this time, he wasn’t even touched. 

Mostert found a perfect hole on an inside zone run and used his blazing speed to go 43 yards for the score to make it 24-10. 

Jones and the Patriots had to respond on the next drive as time was dwindling in the fourth quarter. New England dialed up the right plays, and Jones handled the Dolphins’ pressure as he made the right throws, including a scrambling strike to Juju Smith-Schuster to set up a Rhamondre Stevenson two-yard touchdown run to make it 24-17. 

But the Patriots fell short yet again, and it's back to the drawing board. 

In the box score, Tagovailoa went 21 of 30 for 249 yards with a touchdown and interception, with Jaylen Waddle his leading receiver with 86 yards on four receptions. Hill finished with 40 yards on five catches. 

Jones went 31 for 42 with 231 yards, tallying one touchdown and one interception. The Patriots only had 88 rushing yards, with Stevenson leading the pack with 50 on 15 carries. 

The Patriots look ahead to Week 3 against another AFC East rival, the New York Jets, on the road. 

Meanwhile, the Dolphins, getting off to the fast start head coach Mike McDaniel certainly loves, will return home to face the Denver Broncos.