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Illustration of black hole merger

Astronomy & Observing News

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.

Two neutron stars prior to merger

Astronomy & Observing News

Gravitational Waves Put Ruler to Neutron Stars

Scientists have combined observations of gravitational waves from a neutron star collision with nuclear theory to shed light on the size and nature of neutron stars.

Neutron Star Pair Collides (art)

Astronomy & Observing News

Gravitational Waves from Second Neutron-star Collision Observed

Scientists with the Laser Interferometer Gravitational-wave Observatory (LIGO) and Virgo collaborations have announced the detection of a second pair of neutron stars that went bump in the night.

Illustration of black hole merger

Astronomy Blogs

More Black Hole Mergers Found in LIGO Data

Analysis by an independent team has ferreted out seven candidates for gravitational-wave events from merging black holes.

Simulation of neutron star - black hole merger

Astronomy & Observing News

Gravitational-wave Detectors Come Online, Find Possible Black Hole-Neutron Star Crash

Only a month into a new observing run, gravitational-wave observatories have announced five new signals — one of which could turn out to be a black hole swallowing a neutron star.

Illustration of black holes merging

Astronomy & Observing News

Listen Up: Get Gravitational-wave Alerts

The Laser Interferometer Gravitational-wave Observatory (LIGO) will soon begin a new round of observations. Now you can find out about the discoveries as they happen.

Illustration of black holes merging

Astronomy Blogs

What LIGO Teaches Us About Black Holes

The rising count of gravitational-wave events is giving us a new look at a once-invisible population of black holes.

Illustration of black holes merging

Astronomy & Observing News

Gravitational-Wave Observatories Bag Four Black-Hole Collisions

A re-analysis of data from LIGO and Virgo brings the number of gravitational-wave detections to 11, including the most distant and most powerful black-hole merger yet discovered.

Astronomy & Observing News

Low-key supernova marks possible birth of neutron star duo

A massive star lost most of its mass before exploding and creating a neutron star — and a second nearby neutron star might have been the thief.

Astronomy & Observing News

Seen at Last: A Superfast Jet Streams Away from Neutron-star Smashup

A new finding suggests that LIGO’s neutron-star merger was a typical gamma-ray burst after all.

Neutron star collision

Astronomy & Observing News

Gravitational Waves Shed Light on Neutron Star Interiors

The gravitational-wave detection last year of a neutron star merger has revealed details on neutron star structure, ruling out exotic quark matter in the objects’ cores.

Cocoon scenario explains observations of GW170817

Astronomy & Observing News

Neutron-star Smashup Might Have Choked Its Own Jet

LIGO’s neutron-star smashup might not have been a typical short gamma-ray burst. If true, the detection points toward a new class of gamma-ray bursts — but the jury is still out.

Neutron star collision

Astronomy & Observing News

Astronomers Catch Gravitational Waves from Colliding Neutron Stars

Spacetime ripples from the neutron star smash-up usher in the age of multi-messenger astronomy.

Astronomy & Observing News

2017 Nobel Goes to Gravitational Waves

Three American physicists have received the Nobel Prize in physics for their contributions to the discovery of gravitational waves.

Virgo

Astronomy & Observing News

Fourth Gravitational Wave Event Detected

Teaming up with LIGO, Europe’s Virgo detector has bagged its first gravitational waves. The three-observatory detection enabled scientists to better pinpoint the merging black holes’ location.

LSP in space

Astronomy & Observing News

Goodbye, LISA Pathfinder

The European Space Agency switched off its groundbreaking LISA Pathfinder mission this week.

merging black holes

Astronomy & Observing News

LIGO Detects Third Black Hole Merger

Scientists with the gravitational-wave observatory announce another discovery, this time of a black hole merger twice as far away as previous detections.

two black holes in the moments before a catastrophic collision

Astronomy & Observing News

LIGO Detects Second Black Hole Collision

The gravitational wave observatory has detected a second event, heralding a new era in astrophysics. The day after Christmas last year, the cosmos quietly gifted scientists with gravitational waves — ripples in the fabric of spacetime – produced in a collision between two stellar-mass black holes. It’s the second event…

LISA Pathfinder

Astronomy & Observing News

LISA Pathfinder Surpasses Expectations

First science results from ESA's LISA Pathfinder mission exceed expectations, with five times the sensitivity. This result paves the way for a future full-scale gravitational wave observatory in space.

Astronomy & Observing News

Did Fermi Detect LIGO’s Merging Black Holes?

NASA’s Fermi Gamma-ray Space Telescope might have detected a burst from the same merging black holes that emitted the gravitational waves LIGO detected.