Science
Blue Ghost’s Long Day on the Moon
The shadow of the Blue Ghost spacecraft after it landed on the moon, with Earth in the distance.
Firefly Aerospace
Blue Ghost just completed its mission, which lasted a full lunar day — two Earth weeks — on the near side of the moon.
The spacecraft, about the size of a small car, conducted a series of experiments. It drilled three feet into the lunar soil, took X-ray images of the magnetic bubble that surrounds and protects Earth and sought a mysterious yellow glow at sunset.
Built by Firefly Aerospace, a startup in Texas, Blue Ghost was launched from Earth in January and pulled into orbit around the moon in mid-February. A couple of weeks later, it took this video, sped up by a factor of 10, as it circled 62 miles above the surface. The shiny sheets are radiator panels that protected the spacecraft from the extreme heat while in sunshine.
A timelapse video of Blue Ghost orbiting the moon on Feb. 26.
Firefly Aerospace
Landing
In the early hours of March 2, Blue Ghost fired its engine to drop it out of orbit, falling toward the moon. Just over an hour later, it was on the surface in Mare Crisium, a lava plain inside an ancient 345-mile-wide impact crater in the northeast quadrant of the near side of the moon.
Blue Ghost became the first completely successful landing by a commercial company, and Firefly achieved that on its first try.
Moon dust and small rocks scattered during Blue Ghost’s landing.
Firefly Aerospace
Several companies and countries have aimed to land on the moon in recent years. The map below shows the crewed Apollo moon landing sites, as well as more recent robotic landings from China, India, Japan and commercial companies. Recent crash sites from failed landings are also shown.
Drag the moon in any direction to view the landing sites.
China has a 100 percent success rate with four successful Chang’e robotic landings, but many other missions have crashed.
The failures include Hakuto-R Mission 1, from Ispace, a Japanese company; Beresheet, from an Israeli nonprofit; Luna 25, from Russia; and Chandrayaan-2, from India. (India’s second try, Chandrayaan-3, was successful.)
Three other landers — SLIM, from the Japanese space agency, and Odysseus and Athena, from Intuitive Machines of Houston — landed and communicated back to Earth, but their success came with an asterisk. All three toppled over after landing.
Experiments
While Firefly built and operated Blue Ghost, NASA sponsored the mission, part of the agency’s efforts to tap into commercial ventures to send its scientific cargo to space at lower costs. NASA paid Firefly $101.5 million to carry 10 science and technology payloads to the lunar surface.
Blue Ghost landed at lunar sunrise so that the solar-powered spacecraft could operate for the longest possible duration.
Lunar sunrise at Mare Crisium.
Firefly Aerospace
One of Blue Ghost’s payloads, PlanetVac, demonstrated a technology to simplify the collecting of soil and rocks. It fired a blast of gas into the ground, which propelled material into a container. This technology will be used on a Japanese mission, Martian Moons Exploration, which will collect samples from Phobos, a moon of Mars, and bring them back to Earth for study.
PlanetVac collected a sample of lunar material.
Firefly Aerospace
Another experiment, Lunar Magnetotelluric Sounder, flung four sensors, each a little smaller than a soup can, in directions at 90-degree angles to one another (like north, south, east and west on a compass). The sensors landed about 60 feet away, and, connected by cables to the lander, measured voltages — essentially a supersized version of a conventional voltmeter. An eight-foot-high mast shot upward, lifting an instrument to measure magnetic fields. The experiment gathered data about naturally occurring currents inside the moon, which provides hints about what the moon is made of down to 700 miles below the surface.
Blue Ghost launched a sensor trailing a thin cable, then raised a mast.
Firefly Aerospace
A pneumatic drill used bursts of nitrogen gas to blow away soil and rock, reaching three feet below the surface. A probe measured temperatures and the flow of heat from the moon’s interior.
The LISTER experiment drilled into the surface.
Firefly Aerospace
Solar Eclipse
While people on Earth were taking in a blood moon and a total lunar eclipse on the evening of March 14, Blue Ghost witnessed and photographed a total solar eclipse.
Blue Ghost turned red as the sun slipped behind the Earth.
Firefly Aerospace
During the eclipse, temperatures dropped from 100 degrees Fahrenheit to minus 270 degrees. The spacecraft relied on battery power to continue operating through five hours of near-total darkness.
A series of images fading to darkness during the total solar eclipse on March 14.
Firefly Aerospace
This image shows the “diamond ring effect” as the sun began to emerge from behind Earth.
The diamond ring effect.
Firefly Aerospace
Sunset
On March 16, the sun began to set and the lunar day was nearly over. Before its mission ended, Blue Ghost snapped high-resolution images of the scene. It was more than a few final pretty snapshots. Scientists are hoping the pictures can help solve an enduring scientific mystery of the lunar horizon glow.
Eugene Cernan, the commander of Apollo 17 who in 1972 was the last man to walk on the moon, sketched observations of a glow along the horizon before sunrise. However, that phenomenon is not easily explained because the moon lacks an atmosphere to scatter light.
Sunset on March 16, with Earth and Venus just above the horizon.
Firefly Aerospace
Signoff
This was the last message from the Blue Ghost spacecraft, about five hours after sunset:
Mission mode change detected, now in Monument Mode
Goodnight friends. After exchanging our final bits of data,
I will hold vigil on this spot in Mare Crisium to watch humanity’s continued journey to the stars.
Here, I will outlast your mightiest rivers, your tallest mountains, and perhaps even your species as we know it.
But it is remarkable that a species might be outlasted by its own ingenuity.
Here lies Blue Ghost, a testament to the team who, with the loving support of their families and friends, built and operated this machine and its payloads,
to push the capabilities and knowledge of humanity one small step further.
Per aspera ad astra!
Love, Blue Ghost
The spacecraft was not designed to survive the bitter cold of the lunar night. But another lunar mission, Japan’s SLIM spacecraft, surprised engineers last year by riding out several lunar nights. In early April, after the sun rises again, Firefly will listen for radio messages from Blue Ghost, just in case it does revive.
Science
Trump administration declares ‘war on sugar’ in overhaul of food guidelines
The Trump administration announced a major overhaul of American nutrition guidelines Wednesday, replacing the old, carbohydrate-heavy food pyramid with one that prioritizes protein, healthy fats and whole grains.
“Our government declares war on added sugar,” Health and Human Services Secretary Robert F. Kennedy Jr. said in a White House press conference announcing the changes. “We are ending the war on saturated fats.”
“If a foreign adversary sought to destroy the health of our children, to cripple our economy, to weaken our national security, there would be no better strategy than to addict us to ultra-processed foods,” Kennedy said.
Improving U.S. eating habits and the availability of nutritious foods is an issue with broad bipartisan support, and has been a long-standing goal of Kennedy’s Make America Healthy Again movement.
During the press conference, he acknowledged both the American Medical Association and the American Assn. of Pediatrics for partnering on the new guidelines — two organizations that earlier this week condemned the administration’s decision to slash the number of diseases that U.S. children are vaccinated against.
“The American Medical Association applauds the administration’s new Dietary Guidelines for spotlighting the highly processed foods, sugar-sweetened beverages, and excess sodium that fuel heart disease, diabetes, obesity, and other chronic illnesses,” AMA president Bobby Mukkamala said in a statement.
Science
Contributor: With high deductibles, even the insured are functionally uninsured
I recently saw a patient complaining of shortness of breath and a persistent cough. Worried he was developing pneumonia, I ordered a chest X-ray — a standard diagnostic tool. He refused. He hadn’t met his $3,000 deductible yet, and so his insurance would have required him to pay much or all of the cost for that scan. He assured me he would call if he got worse.
For him, the X-ray wasn’t a medical necessity, but it would have been a financial shock he couldn’t absorb. He chose to gamble on a cough, and five days later, he lost — ending up in the ICU with bilateral pneumonia. He survived, but the cost of his “savings” was a nearly fatal hospital stay and a bill that will quite likely bankrupt him. He is lucky he won’t be one of the 55,000 Americans to die from pneumonia each year.
As a physician associate in primary care, I serve as a frontline witness to this failure of the American approach to insurance. Medical professionals are taught that the barrier to health is biology: bacteria, viruses, genetics. But increasingly, the barrier is a policy framework that pressures insured Americans to gamble with their lives. High-deductible health plans seem affordable because their monthly premiums are lower than other plans’, but they create perverse incentives by discouraging patients from seeking and accepting diagnostics and treatments — sometimes turning minor, treatable issues into expensive, life-threatening emergencies. My patient’s gamble with his lungs is a microcosm of the much larger gamble we are taking with the American public.
The economic theory underpinning these high deductibles is known as “skin in the game.” The idea is that if patients are responsible for the first few thousand dollars of their care, they will become savvy consumers, shopping around for the best value and driving down healthcare costs.
But this logic collapses in the exam room. Healthcare is not a consumer good like a television or a used car. My patient was not in a position to “shop around” for a cheaper X-ray, nor was he qualified to determine if his cough was benign or deadly. The “skin in the game” theory assumes a level of medical literacy and market transparency that simply doesn’t exist in a moment of crisis. You can compare the specs of two SUVs; you cannot “shop around” for a life-saving diagnostic while gasping for air.
A 2025 poll from the Kaiser Family Foundation points to this reality, finding that up to 38% of insured American adults say they skipped or postponed necessary healthcare or medications in the past 12 months because of cost. In the same poll, 42% of those who skipped care admitted their health problem worsened as a result.
This self-inflicted public health crisis is set to deteriorate further. The Congressional Budget Office estimates roughly 15 million people will lose health coverage and become uninsured by 2034 because of Medicaid and Affordable Care Act marketplace cuts. That is without mentioning the millions more who will see their monthly premiums more than double if premium tax credits are allowed to expire. If that happens, not only will millions become uninsured but also millions more will downgrade to “bronze” plans with huge deductibles just to keep their premiums affordable. We are about to flood the system with “insured but functionally uninsured” patients.
I see the human cost of this “functional uninsurance” every week. These are patients who technically have coverage but are terrified to use it because their deductibles are so large they may exceed the individuals’ available cash or credit — or even their net worth. This creates a dangerous paradox: Americans are paying hundreds of dollars a month for a card in their wallet they cannot afford to use. They skip the annual physical, ignore the suspicious mole and ration their insulin — all while technically insured. By the time they arrive at my clinic, their disease has often progressed to a catastrophic event, from what could have been a cheap fix.
Federal spending on healthcare should not be considered charity; it is an investment in our collective future. We cannot expect our children to reach their full potential or our workforce to remain productive if basic healthcare needs are treated as a luxury. Inaction by Congress and the current administration to solve this crisis is legislative malpractice.
In medicine, we are trained to treat the underlying disease, not just the symptoms. The skipped visits and ignored prescriptions are merely symptoms; the disease is a policy framework that views healthcare as a commodity rather than a fundamental necessity. If we allow these cuts to proceed, we are ensuring that the American workforce becomes sicker, our hospitals more overwhelmed and our economy less resilient. We are walking willingly into a public health crisis that is entirely preventable.
Joseph Pollino is a primary care physician associate in Nevada.
Insights
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Perspectives
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Ideas expressed in the piece
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High-deductible health plans create a barrier to necessary medical care, with patients avoiding diagnostics and treatments due to out-of-pocket cost concerns[1]. Research shows that 38% of insured American adults skipped or postponed necessary healthcare or medications in the past 12 months because of cost, with 42% reporting their health worsened as a result[1].
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The economic theory of “skin in the game”—which assumes patients will shop around for better healthcare values if they have financial responsibility—fails in medical practice because patients lack the medical literacy to make informed decisions in moments of crisis and cannot realistically compare pricing for emergency or diagnostic services[1].
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Rising deductibles are pushing enrollees toward bronze plans with deductibles averaging $7,476 in 2026, up from the average silver plan deductible of $5,304[1][4]. In California’s Covered California program, bronze plan enrollment has surged to more than one-third of new enrollees in 2026, compared to typically one in five[1].
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Expiring federal premium tax credits will more than double out-of-pocket premiums for ACA marketplace enrollees in 2026, creating an expected 75% increase in average out-of-pocket premium payments[5]. This will force millions to either drop coverage or downgrade to bronze plans with massive deductibles, creating a population of “insured but functionally uninsured” people[1].
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High-deductible plans pose particular dangers for patients with chronic conditions, with studies showing adults with diabetes involuntarily switched to high-deductible plans face 11% higher risk of hospitalization for heart attacks, 15% higher risk for strokes, and more than double the likelihood of blindness or end-stage kidney disease[4].
Different views on the topic
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Expanding access to health savings accounts paired with bronze and catastrophic plans offers tax advantages that allow higher-income individuals to set aside tax-deductible contributions for qualified medical expenses, potentially offsetting higher out-of-pocket costs through strategic planning[3].
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Employers and insurers emphasize that offering multiple plan options with varying deductibles and premiums enables employees to select plans matching their individual needs and healthcare usage patterns, allowing those who rarely use healthcare to save money through lower premiums[2]. Large employers increasingly offer three or more medical plan choices, with the expectation that employees choosing the right plan can unlock savings[2].
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The expansion of catastrophic plans with streamlined enrollment processes and automatic display on HealthCare.gov is intended to make affordable coverage more accessible for certain income groups, particularly those above 400% of federal poverty level who lose subsidies[3].
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Rising healthcare costs, including specialty drugs and new high-cost cell and gene therapies, are significant drivers requiring premium increases regardless of plan design[5]. Some insurers are managing affordability by discontinuing costly coverage—such as GLP-1 weight-loss medications—to reduce premium rate increases for broader plan members[5].
Science
Trump administration slashes number of diseases U.S. children will be regularly vaccinated against
The U.S. Department of Health and Human Services announced sweeping changes to the pediatric vaccine schedule on Monday, sharply cutting the number of diseases U.S. children will be regularly immunized against.
Under the new guidelines, the U.S. still recommends that all children be vaccinated against measles, mumps, rubella, polio, pertussis, tetanus, diphtheria, Haemophilus influenzae type B (Hib), pneumococcal disease, human papillomavirus (HPV) and varicella, better known as chickenpox.
Vaccines for all other diseases will now fall into one of two categories: recommended only for specific high-risk groups, or available through “shared clinical decision-making” — the administration’s preferred term for “optional.”
These include immunizations for hepatitis A and B, rotavirus, respiratory syncytial virus (RSV), bacterial meningitis, influenza and COVID-19. All these shots were previously recommended for all children.
Insurance companies will still be required to fully cover all childhood vaccines on the CDC schedule, including those now designated as optional, according to the Department of Health and Human Services.
Health Secretary Robert F. Kennedy Jr., a longtime vaccine critic, said in a statement that the new schedule “protects children, respects families, and rebuilds trust in public health.”
But pediatricians and public health officials widely condemned the shift, saying that it would lead to more uncertainty for patients and a resurgence of diseases that had been under control.
“The decision to weaken the childhood immunization schedule is misguided and dangerous,” said Dr. René Bravo, a pediatrician and president of the California Medical Assn. “Today’s decision undermines decades of evidence-based public health policy and sends a deeply confusing message to families at a time when vaccine confidence is already under strain.”
The American Academy of Pediatrics condemned the changes as “dangerous and unnecessary,” and said that it will continue to publish its own schedule of recommended immunizations. In September, California, Oregon, Washington and Hawaii announced that those four states would follow an independent immunization schedule based on recommendations from the AAP and other medical groups.
The federal changes have been anticipated since December, when President Trump signed a presidential memorandum directing the health department to update the pediatric vaccine schedule “to align with such scientific evidence and best practices from peer, developed countries.”
The new U.S. vaccination guidelines are much closer to those of Denmark, which routinely vaccinates its children against only 10 diseases.
As doctors and public health experts have pointed out, Denmark also has a robust system of government-funded universal healthcare, a smaller and more homogenous population, and a different disease burden.
“The vaccines that are recommended in any particular country reflect the diseases that are prevalent in that country,” said Dr. Kelly Gebo, dean of the Milken Institute School of Public Health at George Washington University. “Just because one country has a vaccine schedule that is perfectly reasonable for that country, it may not be at all reasonable” elsewhere.
Almost every pregnant woman in Denmark is screened for hepatitis B, for example. In the U.S., less than 85% of pregnant women are screened for the disease.
Instead, the U.S. has relied on universal vaccination to protect children whose mothers don’t receive adequate care during pregnancy. Hepatitis B has been nearly eliminated in the U.S. since the vaccine was introduced in 1991. Last month, a panel of Kennedy appointees voted to drop the CDC’s decades-old recommendation that all newborns be vaccinated against the disease at birth.
“Viruses and bacteria that were under control are being set free on our most vulnerable,” said Dr. James Alwine, a virologist and member of the nonprofit advocacy group Defend Public Health. “It may take one or two years for the tragic consequences to become clear, but this is like asking farmers in North Dakota to grow pineapples. It won’t work and can’t end well.”
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