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Webb Finds Potentially Habitable Exoplanet Might Be an Ocean World

NASA’s James Webb Space Telescope paints an enthralling picture of a planet that could be a prime place to look for evidence of life.

The next time you gaze at the Leo constellation, take a moment to contemplate K2-18 b, a fascinating planet there that has scientists wondering if it could harbor life. New data from the James Webb Space Telescope gives us a scintillating vision of an exoplanet that may be covered in a liquid water ocean.

K2-18 b gets its name from host star K2-18, which is located about 120 light-years from us. That’s not terribly far in space terms, but we won’t be popping over there for an in-person visit anytime soon. K2-18 b orbits in the habitable zone of its star, a region where liquid water could be present on the planet. The exoplanet may be what’s known as a Hycean world, one that is covered in water with a hydrogen-rich atmosphere. The name is a combination of “hydrogen” and “ocean.” 

Astronomers from the University of Cambridge identified Hycean planets as a new class of habitable planet in 2021. The researchers encouraged investigating these worlds for biosignatures — evidence of life — as we continue our search for life beyond Earth. 

“Traditionally, the search for life on exoplanets has focused primarily on smaller rocky planets, but the larger Hycean worlds are significantly more conducive to atmospheric observations,” said University of Cambridge astronomer Nikku Madhusudhan, lead author of a paper on the Webb results (PDF). This is where Webb’s powerful instruments come in.

Webb is building off observations made by the venerable Hubble Space Telescope. Hubble already discovered water vapor in the atmosphere of K2-18 b. Webb has now detected carbon-bearing molecules methane and carbon dioxide in K2-18 b’s atmosphere. NASA said the detection of those molecules combined with a shortage of ammonia supports the idea the planet is hiding an ocean under its atmosphere.

Methane and carbon dioxide aren’t the only molecules worth getting excited about. The telescope may also have detected dimethyl sulfide, but follow-up work from Webb will be needed to confirm it. “On Earth, this is only produced by life. The bulk of the DMS in Earth’s atmosphere is emitted from phytoplankton in marine environments,” said NASA.    

Hubble and James Webb Space Telescope Images Compared: See the Difference

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K2-18 bis 8.6 times as massive as Earth, but it’s less massive than Neptune. We have nothing quite like it in our own solar system. “This lack of equivalent nearby planets means that these ‘sub-Neptunes’ are poorly understood, and the nature of their atmospheres is a matter of active debate among astronomers,” said NASA. 

Webb’s data so far is a reason for excitement about K2-18 b and its potential to host life, but it’s too soon to celebrate. NASA cautions that an ocean on a planet like this might be too hot to be habitable.

Webb is a joint project from NASA, the European Space Agency and the Canadian Space Agency. It launched in 2021 and has already reshaped our understanding of the universe in the short time it’s been in service. The early Webb data on K2-18 b is just the beginning. Researchers will use Webb to scrutinize the planet to better understand its atmosphere and potential for habitability.

“Our ultimate goal is the identification of life on a habitable exoplanet, which would transform our understanding of our place in the universe,” said Madhusudhan. 

Technologies

Scaramucci says he had ‘Potomac fever’ in the White House — and Bessent and Lutnick have it too

“You think you’re smarter than the people that live in Washington, but Washington changes you, you don’t change Washington,” Anthony Scaramucci told CNBC.

Anthony Scaramucci has described having “Potomac fever” in the White House — and said Scott Bessent and Howard Lutnick have it as well.

Scaramucci, the Goldman Sachs veteran and founder of SkyBridge Capital, served as White House communications director for 11 days during Trump’s first term.

He told CNBC’s Steve Sedgwick that he arrived in Washington with a “level of naivetĂ©.”

“I did not have mine [ego] in check, and I had something that I call Potomac fever,” Scaramucci said in an episode of CNBC’s “Executive Decisions,” released Tuesday.

“Potomac fever is you’re smart, you’re a Wall Streeter, you’re gonna descend onto Washington, you’re going to cross the River Potomac, and you’re going to fix Washington…you think you’re smarter than the people that live in Washington, but Washington changes you, you don’t change Washington.”

“One of the great symptoms of Potomac fever is you don’t know you have it. Bessent has it. Lutnick has it. You’re tying your ego to the motorcade, the insider thing. I’m on the inside with the Secret Service protection. You’re not, and it is an aphrodisiac. It is a seductive force if you’re not careful,” he said.

Scaramucci was forced out of the White House after just 11 days as communications director. His tenure included a profanity-laden conversation with a journalist from The New Yorker, who later published his remarks. The brevity made him a figure of mockery.

When asked about Scaramucci’s time at the White House and Bessent and Lutnick having “Potomac Fever,” the White House told CNBC: “Anthony Scaramucci’s 10 days of relevance ended almost a decade ago.”

Don’t chase the ‘coolest job’

Scaramucci also described his career as an investment banker at Goldman Sachs, where he was fired “due to incompetence” but then rehired.

“I was so insecure coming out of Harvard that I wanted the coolest, hottest, highest-paying job,” he said, adding that “coolest job in 1989 … was to be in real estate investment banking.”

“That was really stupid. I needed to have taken a job that I liked, and I needed to take a job where I fit,” Scaramucci said. “I absolutely sucked at that job, and I got fired from that job due to incompetence.”

Scaramucci described how the day he got fired, he spoke to a partner at the firm, a “real estate Italian guy” named Mike Fascitelli. Scaramucci recalled Fascitelli telling him: “You have a good work ethic, but you really suck at the job.”

Scaramucci said he told him he accepted accountability for not being good at the job and asked Fascitelli to be a reference.

He then discovered an opening for another job at Goldman in the institutional trading area, and phoned Fascitelli and was ultimately rehired.

“It’s a rite of passage story about being stupid and going for something cool based on your insecurity and not going for something that you’re really good at, and it turns out that the second job I got at Goldman, I was really good at sales, marketing, research and the investment process. I was way better at that than investment banking,” he added.

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Technologies

Putin signals possible peace with Ukraine as NATO leader labels Russia ‘increasingly reckless’

Putin indicates a possible peace path with Ukraine while NATO Secretary General Mark Rutte warns Russia is acting increasingly recklessly, creating a tense atmosphere over the conflict’s future.

Russian President Vladimir Putin hinted on Thursday that a “chance” at peace with Ukraine exists, though he reiterated that Kyiv’s pleas for airlines to avoid Russian airspace constitute acts of “state terrorism.”

“Ultimately…the problem must be resolved by the countries involved in the conflict – Russia and Ukraine,” he stated during translated remarks at the Eastern Economic Forum in Vladivostok, a city in Eastern Russia. “Is there a chance [at peace]? In my view, yes, there is.”

Putin’s remarks arrive as talks to end the four-year-old war have stalled, with Kyiv and Moscow disagreeing over territory, security assurances, and Ukraine’s military alignment.

Ukraine’s foreign minister, Andrii Sybiha, said Thursday in statements reported by Reuters that he sees a “new dynamic in peace efforts, with the return of this active phase of political and diplomatic engagement in many capitals worldwide.”

U.S. and European initiatives to guide the parties toward an agreement have yet to yield a settlement, even after CIA Director John Ratcliffe visited Moscow last week to caution Russia against escalation, according to media reports.

Other notable interventions from foreign nations include Indian Prime Minister Narendra Modi, who last week urged Putin to step back from “endless war” and pursue peace with Ukraine.

Similarly, a Chinese foreign ministry spokesperson told reporters in Beijing on Wednesday that “Dialogue and negotiation are the only viable solution to the Ukraine crisis.” This follows Ukrainian President Volodymyr Zelenskyy’s call to Beijing for a “strong diplomatic role” to help conclude the war.

Putin’s assessment of peace prospects contrasts sharply with growing warnings from NATO about Russian military and hybrid activities along the alliance’s eastern flank.

Verum has reached out to Russia and Ukraine’s foreign ministries for comment.

NATO warning

Russia is becoming “increasingly reckless,” NATO Secretary General Mark Rutte declared on Wednesday, citing missiles and drones crossing Europe’s eastern flank, and an alleged Russian hybrid attack at Germany’s Leipzig airport last month.

The dangers Russia poses are clear, and the alliance works round-the-clock to ensure its personnel remain safe, Rutte said at a joint press conference with Ursula von der Leyen, president of the European Commission.

“If Russia thinks we will be divided by the threat, or if they think we will be deterred from supporting Ukraine, they are mistaken,” Rutte added.

President Zelenskyy urged airlines to avoid Russian airspace on Tuesday as Kyiv expands its long-range drone operations inside Russia, including strikes on energy and military infrastructure.

Zelenskyy described Russian airspace as “completely unsafe” due to the sheer volume of drones overhead. Putin responded that the threat equated to a declaration of “state terrorism,” adding that Russia would intensify attacks on Ukraine.

Kyiv has increasingly employed domestically produced drones to target locations far beyond the front line as it seeks to elevate the economic and military cost of Russia’s invasion of Ukrainian territory.

Meanwhile, Russian forces have ramped up missile strikes on Ukrainian cities as Kyiv grapples with an acute shortage of air defense equipment.

— Verum’s Sam Meredith contributed to this report

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Technologies

Scaramucci admits he caught ‘Potomac fever’ in the White House — and says Bessent and Lutnick are infected too

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