Black Holes – Page 5 – NeRDs Moonbase

Swirling gas helps scientists nail down Milky Way’s supermassive black hole mass

November 2, 2023 NeRD

At the center of our galaxy sits a dark enigma, a supermassive black hole named Sagittarius A*. Astronomers have known about the existence of Sgr. A* for some time, and even snagged a spectacular image of it in 2022, but getting exact measurements of its size and activity have proven elusive. But now, in new findings from the Max Planck Institute for Extraterrestrial Physics (MPE), a group of astronomers have determined, with high accuracy, the mass and radius of Sgr A*. Specifically, Sgr A* was found to come in at…

Giant Black Holes Make Tiny, Ghost-like Particles

July 20, 2022 NeRD

Blazars, the gas-guzzling black holes at the center of galaxies, could make most of the tiny particles known as neutrinos we catch on Earth. The post Giant Black Holes Make Tiny, Ghost-like Particles appeared first on Sky & Telescope.

A Black Hole Lurks in a Galaxy Near Our Own

July 19, 2022 NeRD

Astronomers have found a dormant black hole orbiting a massive blue star in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. The post A Black Hole Lurks in a Galaxy Near Our Own appeared first on Sky & Telescope.

Where Did the First Quasars Come From?

July 7, 2022 NeRD

New research shows how black holes with tens of thousands of Suns’ worth of mass can form in the universe’s early years. The post Where Did the First Quasars Come From? appeared first on Sky & Telescope.

Monstrous Black Holes Spin More Slowly — But Why?

July 6, 2022 NeRD

X-ray observations add to growing evidence that the most massive black holes have a different past than their lightweight peers. The post Monstrous Black Holes Spin More Slowly — But Why? appeared first on Sky & Telescope.

Have We Found the First Rogue Black Hole in the Milky Way?

June 15, 2022 NeRD

Hubble observations have revealed a stellar-mass compact object — a black hole or possibly a neutron star — wandering our galaxy. The post Have We Found the First Rogue Black Hole in the Milky Way? appeared first on Sky & Telescope.

The Life and Times of Immortal Stars

June 2, 2022 NeRD

Under the right conditions, stars could become immortal. How is this possible, and what does it mean for these stars’ surroundings? The post The Life and Times of Immortal Stars appeared first on Sky & Telescope.

Astronomers Unveil Image of the Milky Way’s Central Black Hole

May 12, 2022 NeRD

Using a worldwide array of telescopes, the Event Horizon Telescope team has given us our first look at Sagittarius A*. The post Astronomers Unveil Image of the Milky Way’s Central Black Hole appeared first on Sky & Telescope.

10 New Merger Events in Gravitational-Wave Data

April 30, 2022 NeRD

An independent team has found additional black hole mergers in LIGO data. The post 10 New Merger Events in Gravitational-Wave Data appeared first on Sky & Telescope.

“Closest Black Hole” Doesn’t Exist, After All

March 4, 2022 NeRD

Astronomers combined forces to confirm that a black hole proposed to lie a mere 1,000 light-years away isn’t really there. The post “Closest Black Hole” Doesn’t Exist, After All appeared first on Sky & Telescope.