Steven L. Finkelstein

In the James Webb Space Telescope's images, bright dots thought to be distant galaxies might actually be explosions of the first stars — pair-instability supernovae. These cosmic fireworks happen when a massive star made of pure hydrogen and helium is torn apart as light transforms into matter and a

Самую далёкую сверхновую SN Eos подтвердили, разложив её свет в спектр. Взрыв произошёл в среде, почти лишённой тяжёлых элементов, — прямое доказательство рождения массивных звёзд в ранней Вселенной. Открытие стало возможным только благодаря гравитационному линзированию и поможет уточнить темп рожде

Using a gravitational lens — a massive cluster of galaxies bending light — the James Webb Space Telescope detected two red dots in a distant galaxy. These are intermediate-mass black holes, located not in the center but on the outskirts. The discovery suggests such invisible objects might be widespr

The James Webb Space Telescope has spotted mysterious "Little Red Dots" in the early universe—compact objects that don't fit standard models. A new study suggests they may be quasi-stars: black holes shrouded in a dense gas cocoon that thermalizes radiation like a giant furnace. Calculations using t

In a new study presented in the MEOW survey, astronomers used the MIRI infrared camera on the James Webb Space Telescope to search for dust-obscured active galactic nuclei from an era when the Universe was less than a billion years old. Analyzing the emission from hot dust allowed them to identify 1