A ripple of bright blue threads through this galaxy like a misshapen lake system. The foreground of this image is littered with nearby stars with their gleaming diffraction spikes. A keen eye can also spot a few other galaxies that, while masquerading as stars at first glance, reveal their true nature on closer inspection. The central galaxy streaked with colour, IC 4870, was discovered by DeLisle Stewart in 1900 and is located approximately 28 million light-years away. It contains an active galactic nucleus, or AGN: an extremely luminous central region so alight with radiation that it can outshine the rest of the galaxy put together. Credit: ESA/Hubble & NASA

Hubble Images a Galaxy with Threads of Blue

Hubble Images a Galaxy with Threads of Blue A ripple of bright blue gas threads through this galaxy like a misshapen lake system. The foreground…

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Neutron star merger. Credit: NASA's Goddard Space Flight Center/CI Lab

Signals from a spectacular neutron star merger that made gravitational waves are slowly fading away

Signals from a spectacular neutron star merger that made gravitational waves are slowly fading away Neutron star merger. Credit: NASA’s Goddard Space Flight Center/CI Lab…

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The Small Magellanic Cloud galaxy here seen in infrared light, but it looks different when viewed at other wavelengths. ESA/NASA/JPL-Caltech/STScI

Looking at the universe through very different ‘eyes’

Looking at the universe through very different ‘eyes’ The Small Magellanic Cloud galaxy here seen in infrared light, but it looks different when viewed at…

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Radio astronomy may reveal more about the supermassive black hole, typically found at the heart of many galaxies. ESO/L. Calçada/Artists impression, CC BY

Expect the unexpected from the big-data boom in radio astronomy

Expect the unexpected from the big-data boom in radio astronomy Antennas of the Australian SKA Pathfinder (ASKAP) at CSIRO’s Murchison Radio-astronomy Observatory in Western Australia.…

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The Low-Frequency Array (LOFAR), a network of thousands of linked radio antennas, primarily located in the Netherlands, has discovered two new millisecond pulsars by investigating previously unknown gamma-ray sources uncovered by NASA's Fermi Gamma-ray Space Telescope. Pulsar J0952-0607, highlighted near center right, rotates 707 times a second and now ranks as second-fastest pulsar known. The location of LOFAR's first millisecond pulsar discovery, J1552+5437, which spins 412 times a second, is shown at upper left. Radio emission from both pulsars dims quickly at higher radio frequencies, making them ideally suited for LOFAR. The top of this composite image shows a portion of the gamma-ray sky as seen by Fermi. At the bottom is the LOFAR "superterp" near Exloo, the Netherlands, which houses the facility's core antenna stations. Credits: NASA/DOE/Fermi LAT Collaboration and ASTRON

‘Extreme’ Telescopes Find the Second-fastest-spinning Pulsar

‘Extreme’ Telescopes Find the Second-fastest-spinning Pulsar By following up on mysterious high-energy sources mapped out by NASA’s Fermi Gamma-ray Space Telescope, the Netherlands-based Low Frequency Array (LOFAR) radio…

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This diagram illustrates the positions of Mars, Earth and the sun during a period that occurs approximately every 26 months, when Mars passes almost directly behind the sun from Earth's perspective. Image Credit: NASA/JPL-Caltech

For Moratorium on Sending Commands to Mars, Blame the Sun

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