21–40 of 180 results
Supermassive black hole devouring a star

Black Holes

Black Hole Feasts on Star, Bite by Bite

Like a cosmic blinker, a distant supermassive black hole is flaring every 114 days. Astronomers believe the eerily regular signal betrays the piecemeal devouring of a star.

Timing an array of pulsars

Cosmology

Pulsars Show Hint of Gravitational-wave Background

Duos of supermassive black holes tangoing throughout the universe make their own music, and astronomers may have picked up a hint of the tune.

illustration of active galaxy

Black Holes

Survey Finds Newborn Black Hole Jets in Distant Galaxies

Astronomers have spotted a surprising number of quasars with jets launched within a couple of decades.

big black hole merger

The Black Hole Files with Camille Carlisle

Big Black Holes Dominate New Gravitational-Wave Catalog

Gravitational-wave scientists have unveiled their latest catalog of events, revealing a surprising number of massive black holes.

Artist's impression of HR 6819

Black Holes

Casting Doubt on a Nearby Black Hole

New research has shown that the recently-discovered closest black hole to Earth might not be a black hole after all but a binary star.

Stars orbit black hole

Black Holes

Black Hole Scientists Win 2020 Nobel Prize in Physics

This year’s award goes to three researchers who played key roles in developing the theoretical and observational evidence for black holes.

Gravitational waves from GW190521

Cosmology

Record-breaking Signal Reveals New Population of Black Holes

Gravitational-wave observatories have detected the most massive black hole merger yet, and it's challenging our ideas of black hole formation.

black hole binary in AGN disk

The Black Hole Files with Camille Carlisle

Black Hole Collision May Have Caused Burst of Light

Astronomers think they’ve detected a flash created by the merger of two black holes.

visualization of GW190814 gravitational-wave event

The Black Hole Files with Camille Carlisle

Gravitational Wave Detectors Find Mystery “Mass Gap” Object

Astronomers have caught a black hole colliding with a mysterious companion that might be either one of the most massive neutron stars or the smallest black hole ever detected.

Erosita's first all-sky X-ray survey

Professional Telescopes

First All-sky Map from eRosita

The first all-sky X-ray map to be released in 30 years reveals new wonders of the hot and energetic universe.

supermassive black hole with accretion disk

Black Holes

Black Holes Grow by Gas, Not Mergers, Most of Their Lives

Calculations suggest how black holes have amassed mass and predict what the black holes’ spins should be if this picture is correct.

OJ 287 (artist's concept)

Black Holes

Black Hole Duo Flares Right on Time

Astronomers have forecast a flare from a supermassive black hole duo 3.5 billion light-years away.

illustration of triple system HR 6819

The Black Hole Files with Camille Carlisle

Closest Black Hole to Earth? Maybe

An international team of astronomers says that they’ve discovered the closest black hole to Earth — an invisible object dancing with two large, bright stars 1,000 light-years away.

Black Holes

What Kinds of Black Hole Partners Merge?

New research on black hole mergers reveals that the black hole pairs tend to have similar masses — suggesting that they start out as massive stellar pairs.

Illustration of black hole merger

The Black Hole Files with Camille Carlisle

Mismatched Black Holes Merge

For the first time, the LIGO and Virgo gravitational-wave detectors have "heard" gravitational waves from an unequal pair of black holes.

star draws rosette around black hole

Milky Way

Black Hole Changes Star’s Orbit in Gravity Test

A long-awaited measurement indicates that a star whizzing around the Milky Way’s supermassive black hole has changed its trajectory.

series of zooms on 3C 279's jet

The Black Hole Files with Camille Carlisle

Event Horizon Telescope Finds Bent Jet Near Black Hole

Observations from the worldwide network of radio telescopes show the fire hose of plasma shooting from a distant galaxy does something strange near its source.

The Black Hole Files with Camille Carlisle

Scientists Predict Countless Rings of Light Encircle Black Holes

Detailed calculations reveal a surprise about how black holes bend light around themselves, opening a new possibility for future observations.

Dwarf Galaxy

Black Holes

More Big Black Holes Found in Small Galaxies

In the quest to discover how massive black holes form, astronomers have spotted several of these objects in some of the smallest galaxies yet found to host them.

Supermassive Black hole

Black Holes

The Appearance of a Black Hole’s Shadow

In April of this year, the Event Horizon Telescope captured the first detailed images of the shadow of a black hole. In a new study, a team of scientists has now explored what determines the size and shape of black hole shadows like this one.

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