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Black Holes

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

Spacecraft and Space Missions

Goodbye, LISA Pathfinder

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

merging black holes

Black Holes

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

Black Holes

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

Spacecraft and Space Missions

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.

Black Holes

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.

Black Holes

Gravitational Wave Detection Heralds New Era

LIGO scientists have announced the direct detection of gravitational waves, a discovery that won't just open a new window on the cosmos — it'll smash the door wide open.

Aerial view of LIGO Hanford

Professional Telescopes

About The LIGO Gravitational-Wave Rumor. . .

Gossip is racing around the physics and astronomy community: has LIGO finally heard its first black-hole merger? Here’s the reality.

LISA Pathfinder launch

Astronomy in Space with David Dickinson

LISA Pathfinder Heads to Space

An exciting new mission takes the hunt for gravitational waves into space.