Astronomers Discover Compact Quasar Pair Nāpōwawā’enakulua

An international team of astronomers has discovered a compact pair of ancient quasars designated J1602+4228AB, known as Nāpōwawā’enakulua, existing at a time when theoretical models dictate black holes should not have yet formed.

• The Nāpōwawā’enakulua quasar pair formed 900 million years after the big bang during the cosmic dawn.
• Each object measures 1.5 billion and 400 million solar masses respectively, sitting just 18,100 light-years apart.
• Published in the Astrophysical Journal Letters on November 10, 2026, the discovery challenges current black hole formation models.

The system emerged when the universe was only 900 million years old, according to findings covered by kompas.id. Separated by a distance roughly one-fifth the diameter of the Milky Way, the two objects challenge standard timelines which suggest supermassive black holes required at least one billion years to assemble.

Kuasar, as detailed by Robert Lea on Space.com on November 12, 2026, are astronomical objects powered by supermassive black holes at galactic cores surrounded by spinning accretion disks of gas and dust. Gravitational friction superheats this matter, producing light that often outshines entire host galaxies.

Observations historically established that supermassive black holes materialized after the universe reached one billion years of age. During that first billion years, massive dark matter haloes collapsed to ignite initial star formation and anchor early black holes.

Finding Nāpōwawā’enakulua at 900 million years contradicts these frameworks. The system originated during the cosmic dawn, roughly 200 million-400 million years after the big bang.

“There is no exact theoretical explanation for how one giant quasar could form at such an early age in the universe, let alone two,” said Silvia Onorato, lead research team member from NOIRLab US.

Detecting such compact pairs remains exceptionally rare because the active quasar phase is relatively brief. Telescopic identification is further complicated by extreme distances and narrow separations.

NASA’s James Webb Space Telescope (JWST) Aether survey identified numerous quasars, accounting for 43 percent of all known early-universe quasars.

Because atmospheric distortion makes ground-based resolution nearly impossible, the team utilized the Gemini North telescope’s Gemini Near-Infrared Spectrograph (GNIRS) at Hawaii’s Maunakea Observatory. Favorable atmospheric conditions allowed astronomers to isolate the dual light sources into J1602+4228A and J1602+4228B.

“Nāpōwawā’enakulua is a unique object, a laboratory for astronomers to study how the first massive galaxies with black holes at their centers formed through direct galactic interactions,” Onorato noted regarding the implications for early galaxy evolution.

Disclaimer: The information provided in this article is for educational and scientific communication purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider regarding any medical condition, diagnosis, or treatment plan.