Archive – Page 129 – Astronomy Now

Protons may play outsized role in neutron star behaviour

13 August 2018 Astronomy Now

Protons make up only about 5 percent of the particles making up a ultra-compact neutron star, but a new analysis indicates they may play an outsize role in how the dense stars cool and even how they merge in cataclysmic collisions.

Parker Solar Probe launched on historic mission to ‘touch the sun’

12 August 2018 Astronomy Now

Opening a new era, NASA’s $1.5 billion Parker Solar Probe is on its way to a close encounter with the sun, repeatedly flying through the star’s outer atmosphere to find out what heats up the corona and accelerates the solar wind

No place like home in crowded core of Omega Centauri

12 August 2018 Astronomy Now

An analysis of the crowded core of one of the most star-packed globular clusters in the Milky Way – Omega Centauri – indicates frequent gravitational interactions would prevent stable solar systems from forming and along with them, life.

Dwarf galaxy mergers provide fuel for star building in larger galaxies

12 August 2018 Astronomy Now

A new computer simulation sheds light on how the merger of dwarf galaxies results in widely dispersed gas that can be swept up by larger galaxies to provide fuel reserves for star formation.

$2 million earmarked to repair hurricane-damaged radio telescope

8 August 2018 Astronomy Now

Hurricane damage to the St. Croix dish in the continent-spanning Very Long Baseline Array radio telescope network will be repaired with $2 million in disaster-relief funding.

Glittering galaxies galore in wide-angle VST image in Virgo

8 August 2018 Astronomy Now

The European Southern Observatory’s VLT Survey Telescope and its 256-megapixel OmegaCAM instrument captured this stunning view of galaxies shining in Virgo, part of a survey of elliptical “early type” galaxies.

Most distant radio galaxy, host to a voracious black hole, is found

7 August 2018 Astronomy Now

Astronomers have detected the most distant known radio galaxy, a surprising discovery given the supermassive black hole powering the galaxy was actively accreting gas and dust when the Universe was in its infancy.

Sharing an unforgettable moment: The Milky Way over Spain

6 August 2018 Astronomy Now

A dramatic view of the Milky Way sparkling above the Tre Crime Dolomites in Spain. The image is shortlisted in this year’s Insight Astronomy Photographer of the Year competition organised by the Royal Observatory Greenwich.

Brown dwarf or massive exoplanet detected with powerful magnetic field

4 August 2018 Astronomy Now

The Very Large Array radio telescope has made the first detection of a planetary-mass body with a magnetic field 200 times more powerful than Jupiter’s. But it’s not yet clear whether it’s a brown dwarf or a massive exoplanet.

Crescent-shaped nebula in Carina harbours energetic Wolf-Rayet star

3 August 2018 Astronomy Now

The European Southern Observatory’s VLT Survey Telescope captures a stunning view of a crescent-shaped nebula 12,000 light years away in the southern constellation Carina where the outflow from a hot Wolf-Rayet star helps shape the lopsided structure.