Black Holes
Free-Floating Planet-Mass Objects are Common in Galaxies  SCI-NEWS.COM · 2 days
Using a technique called quasar microlensing, a team of astronomers at the University of Oklahoma has detected populations of free-floating planet-mass objects... more
New technology improves gravitational wave detectors by cutting quantum noise  PHYS.ORG · 3 days
Physicists have successfully developed a new instrument that significantly reduces quantum-level noise that has thus far limited experiments' ability to spot gravitational waves. Collisions between massive black holes... more
Best of Last Year: The top Phys.org articles of 2019  PHYS.ORG · 3 days
It was a great year for research of all kinds as a team of astronomers from around the globe delivered the first photo of a black hole. Over... more
A new way to measure cosmic black holes  PHYS.ORG · 4 days
Supermassive black holes are the largest black holes, with masses that can exceed a billion Suns. Just this spring, the first-ever image of the supermassive black hole at the center of the... more
X-ray satellite XMM-Newton celebrates 20 years in space  PHYS.ORG · 4 days
Two decades ago, on Dec. 10, 1999, an Ariane 5 rocket climbed into the morning sky from Kourou, French Guiana. It carried into orbit the X-ray Multi-Mirror Mission (XMM-Newton), the largest scientific... more
How did supermassive black holes grow so fast?  nanowerk · 5 days
Black holes in the early universe pose a bit of a problem. Based on observations from telescopes on Earth and in space, we know that some black holes grew to be a... more
XMM-Newton’s 20th anniversary in space  ESA · 6 days
Image: On 10 December, ESA’s XMM-Newton X-ray space observatory is celebrating its 20th launch anniversary. In those two decades, the observatory has supplied a constant stream... more
How did supermassive black holes grow so fast?  PHYS.ORG · 6 days
Black holes in the early universe pose a bit of a problem. Based on observations from telescopes on Earth and in space, we know that some black holes grew to be a... more
A New Theory for How Black Holes and Neutron Stars Shine Bright  ASTRO WATCH · 1 week
For decades, scientists have speculated about the origin of the electromagnetic radiation emitted from celestial regions that host black holes and neutron stars—the most... more
Supermassive Black Hole Triggers Star Formation in Multiple Galaxies  SCI-NEWS.COM · 1 week
Enormous black holes usually affect their surroundings through the so-called ‘negative feedback’ — in other words, suppressing the... more
Black hole or newborn stars? SOFIA finds galactic puzzle  PHYS.ORG · 2 weeks
Universities Space Research Association (USRA) today announced that scientists on NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) found a strange black hole that is changing its galactic surroundings in a... more
Stellar Black Hole in Our Galaxy Is So Massive It Shouldn't Exist  LIVE SCIENCE · 2 weeks
A gigantic black hole 15,000 light-years from our planet is twice as massive as what researchers thought was possible in our own galaxy. more
Astronomers Find ‘Impossible’ Stellar Black Hole in Milky Way  SCI-NEWS.COM · 2 weeks
An international team of astronomers has discovered an exceptionally massive black hole of stellar origin with a mass... more
A new theory for how black holes and neutron stars shine bright  SCIENCE DAILY · 3 weeks
Astrophysicists employed massive super-computer simulations to calculate the mechanisms that accelerate charged particles in extreme environments. They concluded their energization is powered by the... more
A new theory for how black holes and neutron stars shine bright  nanowerk · 3 weeks
Astrophysicists suggest radiation that lights the densest objects in our universe is powered by the interplay of turbulence and reconnection of super-strong magnetic fields. more
Scientists discover unpredicted stellar black hole  PHYS.ORG · 3 weeks
An international team headed by Professor LIU Jifeng of the National Astronomical Observatory of China of the Chinese Academy of Sciences (NAOC) spotted a stellar black hole with a mass 70 times greater than the sun.... more
A new theory for how black holes and neutron stars shine bright  PHYS.ORG · 3 weeks
For decades, scientists have speculated about the origin of the electromagnetic radiation emitted from celestial regions that host black holes and neutron stars—the most... more
The Simultaneous Merging of Giant Galaxies  ASTRO WATCH · 3 weeks
An international research team led by scientists from Göttingen and Potsdam proved for the first time that the galaxy NGC 6240 contains three supermassive... more
Black hole nurtures baby stars a million light years away  PHYS.ORG · 3 weeks
Black holes are famous for ripping objects apart, including stars. But now, astronomers have uncovered a black hole that may have sparked the births of stars over a... more
Bizarre worlds orbiting a black hole?  SCIENCE DAILY · 3 weeks
Theoreticians in two different fields defied the common knowledge that planets orbit stars like the Sun. They proposed the possibility of thousands of planets around a supermassive black hole. more
Planets around a black hole? Calculations show possibility of bizarre worlds  PHYS.ORG · 3 weeks
Theoreticians in two fields defied the received wisdom that planets only orbit stars like the sun. They proposed the possibility of thousands of planets around a... more
Planets around a black hole? Calculations show possibility of bizarre worlds  nanowerk · 3 weeks
Theoreticians in two different fields defied the common knowledge that planets orbit stars like the Sun. They proposed the possibility of thousands of planets around a... more
The simultaneous merging of giant galaxies  SCIENCE DAILY · 3 weeks
Scientists proved for the first time that the galaxy NGC 6240 contains three supermassive black holes. The unique observations show the black holes close to each other in the core of the galaxy. The study points... more
Astronomers Find Three Supermassive Black Holes in NGC 6240  SCI-NEWS.COM · 3 weeks
NGC 6240, a well-studied nearby galaxy system in the process of merging, contains three supermassive black holes at... more
Nearly Extreme Black Holes Which Attempt to Regrow Hair Become Bald Again  ASTRO WATCH · 3 weeks
The black holes of Einstein's theory of relativity can be completely described by just three parameters: their mass, spin angular momentum, and electric charge.... more
The simultaneous merging of giant galaxies  PHYS.ORG · 3 weeks
An international research team led by scientists from Göttingen and Potsdam proved for the first time that the galaxy NGC 6240 contains three supermassive black holes. The unique observations, published in the journal Astronomy & Astrophysics,... more
Black Holes Grow Hair, Then Go Bald Again  LIVE SCIENCE · 4 weeks
New calculations suggest that some black holes can grow hair, but they can't keep it for long. Alas, they go bald again. more
How LISA pathfinder detected dozens of 'comet crumbs'  SCIENCE DAILY · 4 weeks
Scientists leveraged LISA Pathfinder's record-setting sensitivity (designed to ripples in space-time produced by, among other things, merging black holes) for a different purpose much closer to home -- mapping microscopic dust shed... more
Blowtorch jets from a black hole drive starbirth  PHYS.ORG · 4 weeks
Supermassive black holes, weighing millions or even billions of times our Sun's mass, are still only a tiny fraction of the mass of the galaxies they inhabit. But in some cases, the... more
What's Inside a Black Hole?  LIVE SCIENCE · 4 weeks
You're about to take a dip into the inky blackness of a giant black hole and see what's on the other side of that enigmatic event horizon. What will you find inside? Read on, brave explorer. more
How LISA pathfinder detected dozens of 'comet crumbs'  PHYS.ORG · 4 weeks
LISA Pathfinder, a mission led by ESA (the European Space Agency) that included NASA contributions, successfully demonstrated technologies needed to build a future space-based gravitational wave observatory, a tool for detecting ripples... more
How to observe a 'black hole symphony' using gravitational wave astronomy  nanowerk · 4 weeks
New research by astrophysicists presents a compelling roadmap for capturing intermediate-mass black hole activity. more
How to observe a 'black hole symphony' using gravitational wave astronomy  PHYS.ORG · 4 weeks
Shrouded in mystery since their discovery, the phenomenon of black holes continues to be one of the most mind-boggling enigmas in our universe. more
Nearly extreme black holes which attempt to 'regrow hair' become bald again  nanowerk · 1 month
Black holes 'have no hair': no attributes that can be used to tell them apart. Extreme black holes can have an additional property, permanent... more
Nearly extreme black holes which attempt to regrow hair become bald again  PHYS.ORG · 1 month
Black holes 'have no hair': no attributes that can be used to tell them apart. Extreme black holes (spinning at maximally allowed rate) can... more
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MORE SCIENCE VIDEO
X-ray satellite XMM-Newton celebrates 20 years in space
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Black hole nurtures baby stars a million light years away
PHYS.ORG
Blowtorch jets from a black hole drive starbirth
PHYS.ORG
What's Inside a Black Hole?
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How LISA pathfinder detected dozens of 'comet crumbs'
PHYS.ORG
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