Eyewitness to a Cosmic Car Wreck

October 16, 2017 • by Marc Airhart

What is the sound of two neutron stars colliding over 1 billion light years away?

Illustration of large explosion in space

Astronomers have long been able to watch the universe's blockbuster special effects unfold in dazzling 3D Technicolor. But until now, it's been like watching a silent movie. Today that all changes. Scientists announced this morning that they have for the first time ever detected both light and gravitational waves from a massive explosion in space caused by the collision of two super-dense neutron stars. On today's show, we talk to astrophysicist Pawan Kumar about what this breakthrough means for his field.

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The complicated structure at the centre of the Butterfly Nebula, NGC 6302. There is a bright source at the centre that is surrounded by greenish nebulosity and several looping lines in cream, orange and pink. One of these lines appears to form a ring oriented vertically and nearly edge-on around the bright source at the centre. Other lines trace out a figure eight shape. Moving outward from these complex lines and green nebulosity, there is a section of red light on either side of the object.

McDonald Observatory

Astronomers Investigate Complex Heart of a Cosmic Butterfly

Headshots of Dr. Gilpin, Dr. Kim and Dr. Baldini

Accolades

Three College of Natural Sciences Faculty Win NSF CAREER Awards