Astronomers have used the James Webb Space Telescope (JWST) to measure the mass of a dormant black hole 10 billion light-years away, while geologists have identified a lost protoplanet hidden within a Sahara Desert meteorite. These dual discoveries provide a rare, high-resolution look into the extreme physics of the early universe and the chaotic formation of our own solar system 4.5 billion years ago.
How did astronomers weigh a dormant black hole across the cosmos?
Scientists from Carnegie Science successfully measured the mass of a dormant black hole in the galaxy MRG-M0138 by utilizing the “cosmic magnifying glass” known as gravitational lensing. According to lead researcher Andrew Newman, the team used the JWST’s infrared precision to observe how the galaxy’s intense gravity bends light from more distant objects, creating a natural telescope effect. By tracking the motion of stars orbiting the galaxy’s core, the team confirmed the presence of a massive, inactive black hole. This represents the first direct measurement of a dormant black hole at such a vast distance, providing a baseline for how supermassive black holes evolved during the infancy of the universe.
What does a Sahara meteorite tell us about lost planets?
The meteorite NWA 12774, discovered in the Sahara Desert, serves as a geological “time capsule” from a world that no longer exists. Researchers at the University of Colorado Boulder identified high-pressure crystals called clinopyroxene within the rock, which suggest the meteorite originated from a protoplanet roughly the size of the Moon or Mars. As detailed in the journal Earth and Planetary Science Letters, the mineral composition requires at least 17.5 kilobars of pressure to form. This indicates the planet was large enough to generate significant internal heat and pressure before being shattered during the violent collisions common in the early solar system.
How do these findings shift our view of planetary evolution?
While the black hole discovery in the journal Science focuses on the “macro” scale of galaxy growth, the NWA 12774 meteorite offers a “micro” look at the building blocks of planets. The contrast is stark: we are now able to track the most massive objects in existence while simultaneously identifying the chemical signatures of destroyed worlds that existed billions of years before Earth fully formed. This dual-track research suggests that our solar system was once much more crowded, filled with protoplanets that were either consumed or ejected during the chaotic migrations of the giant planets.
What’s next for deep space exploration?
The scientific community is preparing for a transition in observation power. NASA recently concluded the 11-year mission of the MAVEN probe at Mars, which provided unprecedented data on the planet’s atmospheric loss. Looking ahead, the launch of the Nancy Grace Roman Space Telescope on August 30 will further expand our ability to map the distribution of dark matter and distant planetary systems. These missions, combined with advancements in AI-driven antigen research at the University of Cambridge, mark a shift toward data-heavy, automated discovery across both biology and astrophysics.
Frequently Asked Questions
How can a black hole be “dormant”?
A dormant black hole is one that is not actively consuming surrounding gas or dust. Because it isn’t feeding, it doesn’t emit the bright radiation typical of active galactic nuclei, making them incredibly difficult to detect without gravitational lensing.
Why is the NWA 12774 meteorite considered special?
It contains specific high-pressure mineral patterns that prove it originated from a large, differentiated body—a protoplanet—rather than a small, primitive asteroid.
Will the Nancy Grace Roman Telescope replace JWST?
No, it is intended to complement it. While JWST is designed for deep, narrow-field infrared observations, the Roman telescope will provide a much wider field of view, allowing scientists to survey large sections of the sky for exoplanets and dark energy.
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