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Lake Maracaibo, Lightning Capital of the World

Lightning crackles over Lake Maracaibo in Venezuela in this long-exposure shot from 2014. Jorge Silva/Reuters
Lightning crackles over Lake Maracaibo in Venezuela in this long-exposure shot from 2014. Jorge Silva/Reuters
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Lake Maracaibo, Lightning Capital of the World

Lightning crackles over Lake Maracaibo in Venezuela in this long-exposure shot from 2014. Jorge Silva/Reuters
Lightning crackles over Lake Maracaibo in Venezuela in this long-exposure shot from 2014. Jorge Silva/Reuters

One firebolt after another illuminates a stilt-house settlement where the Catatumbo river flows into Venezuela's Lake Maracaibo, the lightning capital of the world.

Holder of the Guinness World Record as the place with the highest concentration of lightning, South America's largest lake receives an average of 233 flashes per square kilometer every year, according to NASA -- thousands per night.

A scientific and tourist curiosity, for the water-logged communities of Zulia state in Venezuela's northwest the phenomenon is known as the Catatumbo "lighthouse" which for centuries has helped them navigate their boats through the darkness.

There is no thunder, just lightning -- a silent spectacle to be enjoyed about 300 nights per year, peaking in September, said AFP.

On clear nights, the flashes paint striking patterns across the Milky Way in a sky so full of stars one does not need a telescope for constellation gazing.

Some are so fast they escape the human eye. Some zigzag more leisurely through the sky, or collide with other bolts.

In a boon for stargazers but a harsh reality for locals, the near nightly display is made all the more spectacular by the almost complete absence of light pollution.

There is no electrical grid here, and the few generators that still work are idle due to a critical lack of fuel occasioned by Venezuela's economic crisis.

Only rarely is there the faint glow of a small home generator, or a beam from a fisherman's flashlight.

The foreign visitors who used to come to Zulia have been staying away due to the global coronavirus pandemic and Venezuela's economic problems.

Oblivious to the scientific interest in the phenomenon, Marianela Romera -- a fisherwoman of 40 whose worn face makes her look much older -- says that the lightning "shows us where to go."

NASA says Lake Maracaibo has a unique geography and climate ideal for the development of thunderstorms.

Located along part of the Andes mountains, storms form at night as the cool mountain breeze clashes with the warm, moist air over the lake.

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Varieties

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)
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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.

Varieties

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)
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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.

Varieties

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
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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."