The World in Miniature

In the model of St. Peter’s Square in Vatican City, the statues of saints on the colonnades wear clothing made of paper napkins from the Wunderland bistro. Credit: Andreas Meichsner for The New York Times
In the model of St. Peter’s Square in Vatican City, the statues of saints on the colonnades wear clothing made of paper napkins from the Wunderland bistro. Credit: Andreas Meichsner for The New York Times
TT

The World in Miniature

In the model of St. Peter’s Square in Vatican City, the statues of saints on the colonnades wear clothing made of paper napkins from the Wunderland bistro. Credit: Andreas Meichsner for The New York Times
In the model of St. Peter’s Square in Vatican City, the statues of saints on the colonnades wear clothing made of paper napkins from the Wunderland bistro. Credit: Andreas Meichsner for The New York Times

We had an all-encompassing view of Rio de Janeiro and its surroundings: Sugarloaf Mountain, the Christ the Redeemer statue, Copacabana Beach. Architectural novelties like the Niterói Contemporary Art Museum and the Metropolitan Cathedral stood out among the sea of buildings, as trains and streetcars passed by, and thousands of dancers swayed and strutted during the city’s Carnival celebration.

Yet Rio was more than 6,000 miles away, while my husband, son and I stood in a building in the Speicherstadt, the historic warehouse district in Hamburg, Germany.

The scene we admired is one of more than a dozen sprawling exhibits at Miniatur Wunderland, home to the world’s largest model railway and largest miniature airport. The meticulous replica of Rio came on line as Wunderland’s newest exhibit in December 2021, constructed over four years in partnership with a family-owned model-making company out of Argentina.

“Mind-blowing,” my husband said several times during our five hours of marveling at reproductions of Germany, Italy, Scandinavia, the United States and other sites, complete with tiny hand-painted figures participating in the myriad activities of daily life. Through all of the landscapes, trains continually chugged along a total of 16,138 meters (almost 53,000 feet) of track.

The project started in 2000 when the twin brothers Frederik and Gerrit Braun, then 32, dreamed of creating the largest model railroad in the world. The siblings, who grew up as train buffs, wound up running a Hamburg nightclub and record label in the 1990s, but eventually they wanted a lifestyle change. With help from friends and family, the Brauns opened Miniatur Wunderland’s life-size doors in 2001.

In the 21 years since, the attraction has drawn more than 21 million visitors from around the world, becoming one of Germany’s top tourist draws. Yet in the United States, Miniatur Wunderland is primarily known among railroad buffs and other hobbyists.

Count us lucky to have a son, now 15, who has been obsessed with planes, trains, cars and anything else that moves mechanically since he was old enough to point. Lucky because I hadn’t known about Miniatur Wunderland, despite having made numerous trips to Germany, as the daughter of two German-born parents. My son, on the other hand, had been talking about Wunderland for years, ever since he discovered some YouTube videos of it. He was particularly interested in the working airport, which averages 500 takeoffs and landings a day, displayed on a flight monitor (the difference: these model planes are always on time).

So when we planned a trip back to Germany in August to see family in Munich, we added a detour to Hamburg to visit Miniatur Wunderland (and bought tickets online a month in advance for the timed entry). My husband and I wanted to indulge our son, an only child, but what we didn’t anticipate was our own enchantment with this tiny world, full of painstaking detail and technological wizardry, sure, but also bursting with whimsy and humor.

Take the diorama of Italy, for instance. Among the faithful reproductions of St. Peter’s Basilica, the Colosseum and Mount Vesuvius (complete with regular eruptions), there are little moving vignettes, activated by pressing a button (200 such buttons exist throughout Wunderland). In one, Pinocchio’s nose grows six inches across the room of a tiny cottage. Elsewhere, a small Michelangelo bounces on a trampoline to reach the Sistine Chapel ceiling with his paintbrush. Creative license? Absolutely.

“That was the model builder saying, ‘I could have put Michelangelo on scaffolding, but nobody would see it. What could I use instead to show him painting?’” said Thomas Cerny, a software developer and spokesman for Miniatur Wunderland, in a recent phone interview. “The model builders are what make the whole exhibition special. If you know them, you can even tell who built what, as each one has their own sense of humor,” Mr. Cerny added, while sharing with a chuckle that the 100 or so statues of saints on the colonnades in St. Peter’s Square wear clothing made of paper napkins from the Wunderland bistro.

As we moved from exhibit to exhibit, directing each other this way and that to point out some new captivating feature, we appreciated that the landscapes were anything but static. In addition to the trains, cars and boats that travel about (in the Scandinavia section, ships navigate tides in real water), most of the almost inch-high figures are doing something, animated in their depiction if not through actual movement. “As time went on, the model railway became less important, and the storytelling and the creativity became much more important,” Mr. Cerny said.

On the fourth floor, we passed by the central command for all of the exhibits, filled with large screens and electronics. It was like an open kitchen. Not only do the systems that control the trains, vehicles and lighting originate here, but video cameras let staffers monitor things like train derailments and other glitches that can occur with so many moving parts.

We discovered that it’s not always sunny in Miniatur Wunderland, either. Every 12 minutes, the exhibits shift from day to a three-minute-long night, and the real rooms darken as almost half a million LED lights twinkle within the dioramas. Each of those lights is programmed to turn on in sequence rather than all at once, creating a condensed simulation of nightfall. “The brothers are perfectionists,” Mr. Cerny said of the founders.

The New York Times



Saturn's Moon Titan May Not Have a Buried Ocean as Long Suspected, New Study Suggests

This image made by the Cassini spacecraft and provided by NASA on March 12, 2006, shows two of Saturn's moons, the small Epimetheus and smog-enshrouded Titan, with Saturn's A and F rings stretching across the frame. (NASA via AP)
This image made by the Cassini spacecraft and provided by NASA on March 12, 2006, shows two of Saturn's moons, the small Epimetheus and smog-enshrouded Titan, with Saturn's A and F rings stretching across the frame. (NASA via AP)
TT

Saturn's Moon Titan May Not Have a Buried Ocean as Long Suspected, New Study Suggests

This image made by the Cassini spacecraft and provided by NASA on March 12, 2006, shows two of Saturn's moons, the small Epimetheus and smog-enshrouded Titan, with Saturn's A and F rings stretching across the frame. (NASA via AP)
This image made by the Cassini spacecraft and provided by NASA on March 12, 2006, shows two of Saturn's moons, the small Epimetheus and smog-enshrouded Titan, with Saturn's A and F rings stretching across the frame. (NASA via AP)

Saturn's giant moon Titan may not have a vast underground ocean after all.

Titan instead may hold deep layers of ice and slush more akin to Earth’s polar seas, with pockets of melted water where life could possibly survive and even thrive, scientists reported Wednesday.

The team led by researchers at NASA's Jet Propulsion Laboratory challenged the decade-long assumption of a buried global ocean at Titan after taking a fresh look at observations made years ago by NASA’s Cassini spacecraft around Saturn.

They stress that no one has found any signs of life at Titan, the solar system’s second largest moon spanning 3,200 miles (5,150 kilometers) and brimming with lakes of liquid methane on its frosty surface, The AP news reported.

But with the latest findings suggesting a slushy, near-melting environment, “there is strong justification for continued optimism regarding the potential for extraterrestrial life,” said the University of Washington’s Baptiste Journaux, who took part in the study published in the journal Nature.

As to what form of life that might be, possibly strictly microscopic, “nature has repeatedly demonstrated far greater creativity than the most imaginative scientists," he said in an email.

JPL’s Flavio Petricca, the lead author, said Titan’s ocean may have frozen in the past and is currently melting, or its hydrosphere might be evolving toward complete freezing.

Computer models suggest these layers of ice, slush and water extend to a depth of more than 340 miles (550 kilometers). The outer ice shell is thought to be about 100 miles (170 kilometers) deep, covering layers of slush and pools of water that could go down another 250 miles (400 kilometers). This water could be as warm as 68 degrees Fahrenheit (20 degrees Celsius).

Because Titan is tidally locked, the same side of the moon faces Saturn all the time, just like our own moon and Earth. Saturn’s gravitational pull is so intense that it deforms the moon’s surface, creating bulges as high as 30 feet (10 meters) when the two bodies are closest.

Through improved data processing, Petricca and his team managed to measure the timing between the peak gravitational tug and the rising of Titan’s surface. If the moon held a wet ocean, the effect would be immediate, Petricca said, but a 15-hour gap was detected, indicating an interior of slushy ice with pockets of liquid water. Computer modeling of Titan’s orientation in space supported their theory.

Sapienza University of Rome’s Luciano Iess, whose previous studies using Cassini data indicated a hidden ocean at Titan, is not convinced by the latest findings.

While “certainly intriguing and will stimulate renewed discussion ... at present, the available evidence looks certainly not sufficient to exclude Titan from the family of ocean worlds," Iess said in an email.

NASA’s planned Dragonfly mission — featuring a helicopter-type craft due to launch to Titan later this decade — is expected to provide more clarity on the moon’s innards. Journaux is part of that team.

Saturn leads the solar system’s moon inventory with 274. Jupiter’s moon Ganymede is just a little larger than Titan, with a possible underground ocean. Other suspected water worlds include Saturn’s Enceladus and Jupiter’s Europa, both of which are believed to have geysers of water erupting from their frozen crusts.

Launched in 1997, Cassini reached Saturn in 2004, orbiting the ringed planet and flying past its moons until deliberately plunging through Saturn’s atmosphere in 2017.


Catch the Ursid Meteor Shower as it Peaks just before Christmas

People look up to the sky from an observatory near the village of Avren, Bulgaria, Aug. 12, 2009. (AP Photo/Petar Petrov, File)
People look up to the sky from an observatory near the village of Avren, Bulgaria, Aug. 12, 2009. (AP Photo/Petar Petrov, File)
TT

Catch the Ursid Meteor Shower as it Peaks just before Christmas

People look up to the sky from an observatory near the village of Avren, Bulgaria, Aug. 12, 2009. (AP Photo/Petar Petrov, File)
People look up to the sky from an observatory near the village of Avren, Bulgaria, Aug. 12, 2009. (AP Photo/Petar Petrov, File)

The last major meteor shower of the year, known as the Ursids, peaks soon, bringing glowing streaks to nighttime and early morning skies. Compared to other meteor showers, it's more subdued, but experts say it's still worth a glimpse.

Meteor showers happen when space rocks hit Earth's atmosphere at extremely high speeds and burn up, gaining fiery tails — the end of a “shooting star.” Random meteors are visible from Earth on any given clear night, but more predictable meteor showers happen yearly when Earth passes through streams of cosmic leftovers from comets or asteroids, Reuters reported.

The Ursids peak Sunday night into Monday morning and will be visible until Dec. 26 from the Northern Hemisphere. Skygazers usually see five to 10 meteors per hour during the height and there's a possibility for outbursts of up to 25 meteors per hour, according to the American Meteor Society.

How active a shower will appear from Earth depends on the amount of debris and the moon's brightness, which can blot out glowing meteors. The Ursids feature less space debris than other showers like the Geminids, but the narrow crescent moon won't be much of an obstacle when they peak.

No special equipment is needed to view a meteor shower. To see the Ursids, which hail from a comet called 8P/Tuttle, bundle up and get away from city lights.

“The darker your sky, the better the shower is going to be,” said astronomer Peter Brown with Western University in Canada.

The meteors can be seen over the whole sky, but all the streaks will seem to come from a central point near a constellation for which the shower is named. In this case, that's the constellation Ursa Minor, also known as the Little Dipper.

Once it gets dark, avoid bright lights from cellphones, which will make it harder for your eyes to adjust.


Private Astronaut Jared Isaacman Becomes NASA Chief

NASA's next-generation moon rocket, the Space Launch System (SLS) rocket with its Orion crew capsule perched on top, is seen in the Vehicle Assembly Building (VAB) before it is scheduled to make a slow-motion journey to its launch pad at Cape Canaveral, Florida, US March 16, 2022. REUTERS/Thom Baur
NASA's next-generation moon rocket, the Space Launch System (SLS) rocket with its Orion crew capsule perched on top, is seen in the Vehicle Assembly Building (VAB) before it is scheduled to make a slow-motion journey to its launch pad at Cape Canaveral, Florida, US March 16, 2022. REUTERS/Thom Baur
TT

Private Astronaut Jared Isaacman Becomes NASA Chief

NASA's next-generation moon rocket, the Space Launch System (SLS) rocket with its Orion crew capsule perched on top, is seen in the Vehicle Assembly Building (VAB) before it is scheduled to make a slow-motion journey to its launch pad at Cape Canaveral, Florida, US March 16, 2022. REUTERS/Thom Baur
NASA's next-generation moon rocket, the Space Launch System (SLS) rocket with its Orion crew capsule perched on top, is seen in the Vehicle Assembly Building (VAB) before it is scheduled to make a slow-motion journey to its launch pad at Cape Canaveral, Florida, US March 16, 2022. REUTERS/Thom Baur

The US Senate confirmed billionaire private astronaut Jared Isaacman to become President Donald Trump's NASA administrator, making an advocate of Mars missions and a former associate of SpaceX CEO Elon Musk the space agency's 15th leader. The vote on Isaacman, who Trump removed and then renamed as NASA administrator nominee this year, passed 67-30, two weeks after he told senators in his second hearing that NASA must pick up the pace in beating China back to the moon this decade, Reuters reported.

Isaacman will lead an agency of 14,000 employees as it invests billions of dollars into its most ambitious space exploration endeavor yet: returning humans to the moon to seed a long-term presence on the surface before eventually sending astronauts to Mars.

NASA WORKFORCE CUT IN EFFICIENCY PUSH

The White House, in its government efficiency push led by Musk, slashed NASA's workforce by 20% and has sought to cut the agency's 2026 budget by roughly 25% from its usual $25 billion, imperiling dozens of space-science programs that scientists and some officials regard as priorities.

Isaacman envisions a revamped focus on sending missions to Mars on top of the Artemis moon effort, as well as a greater dependence on private companies such as SpaceX to save taxpayer money and stimulate private-sector competition.

Of the 67 votes in Isaacman's favor, 16 were from Democrats, joining 51 from Republicans. All 30 votes against his confirmation were from Democrats.

Maria Cantwell, the ranking member of the Senate Commerce Committee that oversees NASA, has criticized the Trump administration's efforts to cut NASA's science unit. She supported Isaacman's confirmation on Wednesday.

"During his nomination process, Mr. Isaacman emphasized the importance of developing a pipeline of future scientists, engineers, researchers, (and) astronauts to support the science and technology development and align with NASA's objectives. I strongly agree," Cantwell said.

Some Democratic senators said during Isaacman's hearing on December 3 they are concerned about Isaacman's closeness to Musk, whose company holds about $15 billion in NASA contracts and could benefit from certain policies Isaacman has advocated.

Musk advocated for Isaacman's nomination when Trump was elected in 2024. Musk had sought to realign the US space program with a greater focus on Mars during his stint as a close adviser to Trump.

Senate Republicans and some Democrats, including Cantwell, have also stressed urgency in NASA's moon race with China, which is aiming to send its astronauts to the lunar surface by 2030. NASA faces a shaky target of 2028 using its Space Launch System rocket and SpaceX's giant Starship rocket, under development, as the lander.

Acting NASA chief Sean Duffy, who also leads the US Transportation Department, congratulated Isaacman on X, wishing Isaacman "success as he begins his tenure and leads NASA as we go back to the Moon in 2028 and beat China."