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Galaxies

Method to weigh galaxy clusters could help us understand mysterious ‘dark matter’ structures

Gravitational lensing (arcs and streaks in the picture) in the galaxy cluster Abell 370. NASA/ESA

Method to weigh galaxy clusters could help us understand mysterious ‘dark matter’ structures

Method to weigh galaxy clusters could help us understand mysterious ‘dark matter’ structures Gravitational lensing (arcs and streaks in the picture) in the galaxy cluster Abell 370. NASA/ESA James Geach, University of Hertfordshire The furthest galaxy ever observed is so far away that the starlight […]

LIGO announcement vaults astronomy out of its silent movie era into the talkies

Supercomputer simulation of a pair of neutron stars colliding. NASA/AEI/ZIB/M. Koppitz and L. Rezzolla, CC BY

LIGO announcement vaults astronomy out of its silent movie era into the talkies

LIGO announcement vaults astronomy out of its silent movie era into the talkies Supercomputer simulation of a pair of neutron stars colliding. NASA/AEI/ZIB/M. Koppitz and L. Rezzolla, CC BY Chad Hanna, Pennsylvania State University When LIGO detected its first gravitational wave back in September 2015, […]

At last, we’ve found gravitational waves from a collapsing pair of neutron stars

Artist’s impression of the collision of two neutron stars, the source of the latest gravitational waves detected. National Science Foundation/LIGO/Sonoma State University/A. Simonnet, Author provided

At last, we’ve found gravitational waves from a collapsing pair of neutron stars

At last, we’ve found gravitational waves from a collapsing pair of neutron stars Artist’s impression of the collision of two neutron stars, the source of the latest gravitational waves detected. National Science Foundation/LIGO/Sonoma State University/A. Simonnet, Author provided David Blair, University of Western Australia After […]

After the alert: radio ‘eyes’ hunt the source of the gravitational waves

The Australia Telescope Compact Array in Narrabri, NSW. David Smyth/CSIRO, Author provided

After the alert: radio ‘eyes’ hunt the source of the gravitational waves

After the alert: radio ‘eyes’ hunt the source of the gravitational waves The Australia Telescope Compact Array in Narrabri, NSW. David Smyth/CSIRO, Author provided Tara Murphy, University of Sydney and David Kaplan, University of Wisconsin-Milwaukee At 11:21pm Sydney time on Thursday August 17, 2017, an […]

Why astrophysicists are over the moon about observing merging neutron stars

Simulation of two neutron stars merging. NASA/AEI/ZIB/M. Koppitz and L. Rezzolla, CC BY

Why astrophysicists are over the moon about observing merging neutron stars

Why astrophysicists are over the moon about observing merging neutron stars Simulation of two neutron stars merging. NASA/AEI/ZIB/M. Koppitz and L. Rezzolla, CC BY Roy Kilgard, Wesleyan University When LIGO, the Laser Interferometer Gravitational-Wave Observatory, first detected gravitational waves from merging black holes, it opened […]

How we discovered gravitational waves from ‘neutron stars’ – and why it’s such a huge deal

Artist’s illustration of two merging neutron stars. National Science Foundation/LIGO/Sonoma State University/A. Simonnet., CC BY-SA

How we discovered gravitational waves from ‘neutron stars’ – and why it’s such a huge deal

How we discovered gravitational waves from ‘neutron stars’ – and why it’s such a huge deal Artist’s illustration of two merging neutron stars. National Science Foundation/LIGO/Sonoma State University/A. Simonnet., CC BY-SA Martin Hendry, University of Glasgow Rumours have been swirling for weeks that scientists have […]

Hubble’s Compact Galaxy with Big-Time Star Formation

Credit: ESA/Hubble & NASA

Hubble’s Compact Galaxy with Big-Time Star Formation

Hubble’s Compact Galaxy with Big-Time Star Formation As far as galaxies are concerned, size can be deceptive. Some of the largest galaxies in the Universe are dormant, while some dwarf galaxies, such as ESO 553-46 imaged here by the NASA/ESA Hubble Space Telescope, can produce […]

Star Trek discovery of alien life veers away from likely reality

Here, an alien crew member, Saru on Star Trek: Discovery. We often rely on science fiction to guide our expectations of alien life. We can hope lessons about accepting beings very different from yourself can be extracted by the series end. (Courtesy of CBS Studios)

Star Trek discovery of alien life veers away from likely reality

Star Trek discovery of alien life veers away from likely reality Here, an alien crew member, Saru on Star Trek: Discovery. We often rely on science fiction to guide our expectations of alien life. We can hope lessons about accepting beings very different from yourself […]

NASA’s Webb Telescope to Witness Galactic Infancy

The Hubble Ultra Deep Field is a snapshot of about 10,000 galaxies in a tiny patch of sky, taken by NASA’s Hubble Space Telescope. Credits: NASA, ESA, S. Beckwith (STScI), the HUDF Team

NASA’s Webb Telescope to Witness Galactic Infancy

NASA’s Webb Telescope to Witness Galactic Infancy Scientists will use NASA’s James Webb Space Telescope to study sections of the sky previously observed by NASA’s Great Observatories, including the Hubble Space Telescope and the Spitzer Space Telescope, to understand the creation of the universe’s first […]

An award with real gravity: how gravitational waves attracted a Nobel Prize

An illustration of the collision of two black holes, an event detected for the first time ever by the Laser Interferometer Gravitational-Wave Observatory (LIGO). The SXS (Simulating eXtreme Spacetimes) Project

An award with real gravity: how gravitational waves attracted a Nobel Prize

An award with real gravity: how gravitational waves attracted a Nobel Prize An illustration of the collision of two black holes, an event detected for the first time ever by the Laser Interferometer Gravitational-Wave Observatory (LIGO). The SXS (Simulating eXtreme Spacetimes) Project Eric Thrane, Monash […]