NASA’s Webb Reveals Black Hole That Formed Before Its Galaxy - UNIVERSE

Which comes first, the galaxy or the black hole? We don’t know, but scientists have long thought it could be the galaxy: Large stars within an existing galaxy consume their fuel and collapse to form black holes, which can gobble up surrounding material and merge over time to form more massive entities.

But it’s hard to figure out how black holes millions to billions of times the mass of the Sun, thousands of which have now been detected in the early universe, could have grown so quickly from such small seeds.  

Now, researchers using NASA’s James Webb Space Telescope have detected clear evidence that some supermassive black holes were enormous from the beginning, forming without a stellar collapse phase, and without a significantly more massive host galaxy to feed them.

“This is a remarkable finding,” said Roberto Maiolino of University of Cambridge in the United Kingdom, co-author of studies published in Nature and the Monthly Notices of the Royal Astronomical Society. “It’s a paradigm shift, a total revisiting of the classical scenarios of how black holes form and grow.”

Little Red Dot QSO1

The team’s conclusion is based on detailed observations of Abell2744-QSO1 (QSO1), a prototypical Little Red Dot that existed just 700 million years after the big bang.

Although QSO1 is only 1,300 light-years across, and its light has been traveling for more than 13 billion years, it is easier to study than most other Little Red Dots because it is gravitationally lensed by galaxy cluster Abell 2744 (Pandora’s Cluster). QSO1 is both magnified and triply imaged, appearing in three different locations in the sky.

Initial studies of QSO1 revealed compelling evidence that it may be little more than a cloud of glowing hydrogen and helium gas circling a supermassive black hole estimated at 40 million times the mass of the Sun. But as with other early black holes discovered by Webb, there was uncertainty about whether it really was that massive.

“Before now, all of the mass measurements of black holes in the early universe have been indirect, based on assumptions from what we know about them in the local universe. We didn’t know if those assumptions really apply to the distant universe,” said co-author Francesco D’Eugenio, also of the University of Cambridge.

Image: Little Red Dot Abell2744-QSO1 (NIRCam Image)

An image from NIRCam on NASA’s James Webb Space Telescope shows Little Red Dot Abell2744-QSO1, magnified and triply imaged by galaxy cluster Abell 2744 (Pandora’s Cluster).

Image: NASA, ESA, CSA, Lukas Furtak (Ben-Gurion University); Image Processing: Alyssa Pagan (STScI)

Mapping gas composition, velocity

The team recognized that if QSO1’s black hole is as massive as it looks, they should be able to use the integral field unit (IFU) on Webb’s NIRSpec (Near Infrared Spectrograph) to trace the effects of its gravity on the gas swirling around it, while also mapping the distribution of various elements in the gas.

Cambridge graduate student Ignas Juodžbalis and Cosimo Marconcini of the University of Florence, lead authors on one of the studies, used the IFU observations to map motions of hydrogen gas surrounding the black hole. When they plotted the rotation velocity as a function of distance from the center, they found that the gas has Keplerian motion: It orbits a central point in the same way that planets in our solar system orbit the Sun.

“This is important because it tells us that most of the mass of QSO1 is concentrated in the black hole at the center,” said Juodžbalis. “If the mass were more distributed, as it would be if there were a lot of stars, the gas would not have this perfect Keplerian rotation.”

Since Keplerian motion is governed by simple laws of gravity, the team was able to use the gas velocity measurements to calculate the black hole mass directly, a feat that had not previously been possible.

They found that not only is the black hole immense — roughly 50 million solar masses — it makes up, at minimum, an astonishing two-thirds of QSO1’s total mass. This proportion is thousands of times greater than in nearby galaxies, where supermassive black holes make up only a tiny fraction of the host galaxy’s total mass.

The IFU composition maps supported these results, showing that the gas throughout QSO1 is almost entirely hydrogen and helium, with very little of the heavier elements like oxygen that would be expected in a galaxy rich with stars and stellar debris. With a metallicity less than 0.5% of the Sun, QSO1 is one of the most pristine galactic environments ever measured.

“This is a phenomenal result,” said Maiolino. “It is the first direct measurement of a black hole mass within the first billion years after the big bang, and it is consistent with the previous measurements.” The team thinks this is a good sign that the assumptions used for indirect mass measurements are valid and the masses of other black holes in the early universe have not been overestimated.  

Supermassive black hole origins

The outsized mass of QSO1 relative to its host galaxy suggests that it can’t have formed gradually from much smaller, stellar-mass black holes merging and feeding. “It seems that we have found a black hole that does not have a substantial host galaxy and that has predated stellar processes,” said Juodžbalis. “This is very exciting because it is evidence for primordial black holes or direct collapse black holes, which have been theorized but not confirmed.”

Whether QSO1’s black hole evolved from a “heavy seed” that formed within the first second of the big bang or somewhat later from the collapse of a giant cloud of gas, it was almost certainly born big, and may be in the early stages of building a galaxy around it.

The team thinks that Little Red Dots like QSO1 cannot have been rare in the early universe, and is in the process of analyzing similar objects to find out whether supermassive black holes actually do predate the galaxies where they currently reside.

The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and CSA (Canadian Space Agency).

To learn more about Webb, visit: https://science.nasa.gov/webb 

Source: NASA’s Webb Reveals Black Hole That Formed Before Its Galaxy - NASA Science

Ebola Is Back, What You Need to Know About the 2026 Outbreak

A new Ebola outbreak is unfolding right now, and this one is different from the ones you may remember. On May 15, 2026, the Democratic Republic of the Congo (DRC) officially declared an outbreak in its northeastern Ituri Province. Within days, cases had crossed the border into Uganda’s capital Kampala. By May 17, the World Health Organization declared it a Public Health Emergency of International Concern (PHEIC), the highest level of global health alarm.

As of May 27, 2026, more than 1,200 suspected and confirmed cases and at least 264 deaths have been reported. The outbreak is still growing.

What Makes This Outbreak Different

Most people associate Ebola with the Zaire strain, the one responsible for the catastrophic 2014–2016 West Africa epidemic and the large 2018–2019 DRC outbreak. For that strain, there is an approved vaccine (rVSV-ZEBOV) and approved treatments. This outbreak is caused by a different species entirely: Bundibugyo virus.

Bundibugyo is rarer. This is only the third time it has been implicated in a known outbreak. It was first identified less than 20 years ago in western Uganda. And critically, as of today, there is no approved vaccine and no approved treatment for Bundibugyo. Scientists and international health agencies are urgently working to test candidate therapies, but nothing is licensed yet. This makes the current outbreak significantly more difficult to manage than previous ones.

The outbreak is also happening in a deeply challenging context: active armed conflict in eastern DRC, a large humanitarian crisis, heavy cross-border population movement, dense urban and semi-urban areas, and limited diagnostic capacity. PCR test kits specific to Bundibugyo are in short supply, which slows case confirmation and contact tracing, the two most critical tools for stopping any Ebola outbreak.

What Is Ebola, and How Does It Work?

Ebola disease is caused by a family of viruses called ebolaviruses, which are found naturally in sub-Saharan Africa. Fruit bats are believed to be the primary animal reservoir, the species that carries the virus without becoming ill. Occasionally, the virus “spills over” into humans, either through contact with an infected animal or its bodily fluids, and from there it can spread from person to person.

Once inside the human body, the virus attacks multiple organ systems simultaneously. It causes what is known as a viral hemorrhagic fever, though not all patients experience visible bleeding. The disease typically progresses in two phases:

Early “dry” phase: Fever, headache, severe fatigue, muscle aches, and sore throat. These symptoms are non-specific and easy to mistake for malaria, typhoid, or flu, which is part of what makes early detection so difficult.

Later “wet” phase: Vomiting, diarrhea, and in some cases internal or external bleeding. Patients can deteriorate rapidly at this stage. The average incubation period from exposure to symptoms is 8 to 10 days, though it can range from 2 to 21 days.

Crucially, a person is only contagious once symptoms appear. Ebola does not spread through the air. You cannot contract it by passing someone on the street or being in the same room as an infected person who is not yet symptomatic.

How Does It Spread?

Ebola spreads through direct contact with the blood or bodily fluids of a symptomatic infected person, or with contaminated objects such as needles, bedding, or medical equipment. The most common transmission routes are:

·         Caring for a sick family member without protective equipment

·         Exposure in healthcare settings without proper infection control

·         Handling the body of someone who died from Ebola (funeral and burial practices are a significant transmission risk in affected communities)

·         Contact with infected animals, though this is rare

Healthcare workers and family caregivers carry the highest risk. The virus can also persist in the body of a survivor, particularly in semen, for weeks to months after recovery, which can lead to sexual transmission even after a person appears well.

What Is the Risk for People Outside DRC and Uganda?

For the vast majority of people in Europe, North America, and elsewhere, the current risk is very low. Ebola does not spread easily in settings with functioning healthcare infrastructure, running water, and robust infection control. The CDC currently rates the risk to the United States as low, though it has issued a Level 3 Travel Health Notice (avoid non-essential travel) for DRC and a Level 1 Notice (practice usual precautions) for Uganda.

Enhanced health screening is in place at airports for travelers arriving from affected regions. The US, EU, and other governments are coordinating with airlines and port-of-entry officials to identify and manage anyone who may have been exposed.

That said, the fact that cases have already appeared in Kampala, a major international hub, is a reminder that in a connected world, no outbreak stays local forever. Vigilance matters.

How to Protect Yourself

If you are not in an affected region: Stay informed through official sources (CDC, WHO). There is no need for alarm, but awareness is useful. Monitor travel advisories before any trip to Central or East Africa.

If you are traveling to DRC, Uganda, or surrounding areas:

·         Avoid contact with sick people and with anyone who has died from unknown causes

·         Do not handle or consume bushmeat (wild animals)

·         Avoid contact with bats and non-human primates

·         Wash hands frequently and thoroughly with soap and water or alcohol-based hand sanitizer

·         Seek medical attention immediately if you develop fever, fatigue, or other symptoms within 21 days of potential exposure, and inform healthcare workers of your travel history

If you are a healthcare worker or aid worker in an affected area:

·         Use full personal protective equipment (PPE) at all times with suspected or confirmed cases

·         Follow strict infection prevention and control (IPC) protocols

·         Ensure safe and dignified burial practices

·         Participate in daily contact monitoring and report symptoms immediately

How Is the Outbreak Being Managed?

Without an approved vaccine or treatment for Bundibugyo, the response relies entirely on proven public health fundamentals: find cases early, isolate them quickly, trace every contact, and protect healthcare workers. WHO, MSF (Doctors Without Borders), the CDC, and many other international partners are on the ground scaling up these efforts.

Contacts of confirmed cases are monitored daily for 21 days, the maximum incubation period. Anyone who develops symptoms is immediately quarantined. Safe burial teams are managing the high-risk process of handling the deceased. Community engagement is a critical part of the response: outbreaks are controlled fastest when local communities understand what is happening and trust the response.

Clinical trials for candidate Bundibugyo-specific treatments and a ring vaccination strategy using available experimental vaccines are being explored. History gives some reason for optimism: every previous Ebola outbreak, including some that seemed uncontrollable at first, has eventually been brought to an end.

A Final Word

Ebola is frightening, partly because of its severity and partly because of how it has been portrayed in popular culture. But it is not a mystery virus, and the science of how to stop it is well understood. What makes outbreaks like this one so difficult is not the biology, it is the context: war, poverty, displacement, and under-resourced health systems.

The best thing most of us can do right now is stay informed, trust verified sources, and support the organisations working on the ground. The worst outcomes in outbreak history have always been driven by fear, misinformation, and delayed response. The best outcomes have come from transparency, coordination, and community trust.

This is a serious situation. It is also one the world knows how to face.

Key sources and further reading:

·         WHO situation page: Ebola Outbreak DRC 2026

·         CDC outbreak summary: CDC Ebola Situation Summary

·         CDC FAQ on Bundibugyo: Ebola and Bundibugyo Virus FAQ

·         MSF on the Bundibugyo challenge: Why This Outbreak Is Different

·         ECDC rapid risk assessment: ECDC Risk Assessment

Source: Ebola Is Back, What You Need to Know About the 2026 Outbreak – Scents of Science