A paper links dark stars to Webb telescope puzzles involving bright sources, dust-free galaxies, and early black holes.

The gravitational lens JVAS B1938+666 consists of massive bodies ranging from 6.5 billion to 11 billion light-years away, ...

When astronomers look deep into the early universe, the expectation is simple. You should see young galaxies still assembling ...

The Circinus galaxy, a galaxy about 13 million light-years away, contains an active supermassive black hole that continues to ...

The X-Ray Imaging and Spectroscopy Mission (XRISM), a joint mission between the Japanese Aerospace Exploration Agency (JAXA) ...

Some of the darkest objects in the universe are also among its brightest beacons, lighting up entire galaxies while their neighbors stay strangely subdued. The latest generation of supercomputer ...

QSO1. It lived just 700 million years after the Big Bang and already had a mass about 50 million times that of the Sun.

Black holes are not cosmic vacuum cleaners. They are among the universe’s most extreme objects - and come in different sizes.

One of the most notable aspects about our planet—if observed from the outside—is that it spins. Earth’s spin defines our days, setting the fundamental rhythm of life on our world. The moon spins, too.

A comprehensive set of simulations by Flatiron Institute astrophysicists and their colleagues revealed that magnetic fields are responsible for creating black holes with masses in a range previously ...

Scientists may have finally uncovered the mystery behind ultra-high-energy cosmic rays — the most powerful particles known in the universe. A team from NTNU suggests that colossal winds from ...

The black hole was bigger than expected, and while the answer was hiding in plain sight, it still rewrites what we thought was possible. Reading time 4 minutes When LIGO broke news of an ...