SA Special Editions Vol 30 Issue 1s

Special Edition

Volume 30, Issue 1s

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Features

The Milky Way's Monster, Unveiled

The Milky Way's Monster, Unveiled

Astronomers have revealed never before seen features of our galaxy’s mysterious supermassive black hole

Escape from a Black Hole

To save quantum mechanics, information must break free from black holes. New observations may help tell us how

Astronomers May Have Glimpsed Light from Merging Black Holes

Astronomers May Have Glimpsed Light from Merging Black Holes

In a controversial finding, astronomers claim they have glimpsed light from merging black holes

Fiery Holes in Space and Time

Fiery Holes in Space and Time

Firewalls” of particles may border black holes, confounding both general relativity and quantum mechanics

Here Come the Waves

Here Come the Waves

After a clutch of historic detections, gravitational-wave researchers have set their sights on some ambitious scientific quarry

LIGO and Virgo Capture Their Most Massive Black Holes Yet

LIGO and Virgo Capture Their Most Massive Black Holes Yet

The unexpected finding gives astronomers their first good look at previously missing “intermediate”-size black holes

Mysterious, Dusty Objects Are Swarming the Milky Way's Core

Mysterious, Dusty Objects Are Swarming the Milky Way's Core

Swirling around our galaxy’s central supermassive black hole, these objects share properties with both stars and gas clouds

Is Dark Matter Made of Black Holes?

Is Dark Matter Made of Black Holes?

A hidden population of black holes born less than one second after the big bang could solve the mystery of dark matter

The Black Hole Collision That Reshaped Physics

The Black Hole Collision That Reshaped Physics

A momentous signal from space has confirmed decades of theorizing on black holes—and launched a new era of gravitational-wave astronomy

Astronomers Spy Swarms of Black Holes at Our Galaxy's Core

Astronomers Spy Swarms of Black Holes at Our Galaxy's Core

Anticipated but never before seen, the existence of tens of thousands of these dark objects at the galactic center could have far-reaching implications for astrophysics

Lost in Thought--How Important to Physics Were Einstein's Imaginings?

Einstein’s thought experiments left a long and somewhat mixed legacy of their own

Mystery Object Blurs Line between Neutron Stars and Black Holes

Mystery Object Blurs Line between Neutron Stars and Black Holes

Existing in the “mass gap” dividing two classes of stellar remnants, this strange object could be the most massive neutron star, the lightest-known black hole—or something else entirely

Black Hole Factories May Hide at Cores of Giant Galaxies

Black Hole Factories May Hide at Cores of Giant Galaxies

Gravitational-wave astronomers are probing the origins of abnormally massive black holes—and with them, the inner workings of their colossal galactic homes

Shredded Stars Offer New View of Supermassive Black Holes

Shredded Stars Offer New View of Supermassive Black Holes

New techniques reveal how supermassive black holes shred entire stars

Nobel Prize Work Took Black Holes from Fantasy to Fact

Nobel Prize Work Took Black Holes from Fantasy to Fact

Over the past century, the existence of these invisible cosmic bodies has become unmistakable

The Puzzle of the First Black Holes

Astronomers are puzzled about how the oldest supermassive black holes could have grown so big so early in cosmic history

Entangled Wormholes Could Pave the Way for Quantum Gravity

Entangled Wormholes Could Pave the Way for Quantum Gravity

The weird quantum phenomenon of entanglement could produce shortcuts between distant black holes

An Exit Chute from the Universe: The Story of a Historic Effort to Image a Black Hole

After more than a decade of effort, a global network of radio telescopes revealed the first-ever picture of an enigmatic hole in spacetime

Tangled Up in Spacetime

Tangled Up in Spacetime

The collaborative project “It from Qubit” is investigating whether space and time sprang from the quantum entanglement of tiny bits of information

Departments

From the Editor
Golden Age of Black Holes
News
Astronomers Spy a Black Hole Devouring a Neutron Star
Graphic Science
Gravitational Waves Are Being Detected at an Increasing Pace
Innovations In
What Is Spacetime?
Opinion
How Andrea Ghez Won the Nobel for an Experiment Nobody Thought Would Work