Blog Profile / Physorg: Astronomy


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Archived Since:September 5, 2016

Blog Post Archive

Hubble weighs in on mass of three million billion suns

In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion suns—so it's little wonder that it has earned the nickname of "El Gordo" ("the...Show More Summary

Astronomers conduct detailed chemical analysis of eleven globular clusters

Astronomers have performed abundance measurements for 11 globular clusters in the galaxies NGC 147, NGC 6822, and Messier 33. The new study, presented January 9 in a paper published on arXiv.org, could improve our knowledge about chemical composition of stellar populations in the universe.

JUICE ground control gets green light to start development of Jupiter operations

ESA's Jupiter Icy Moons Explorer – JUICE – passed an important milestone, the ground segment requirements review, with flying colours, demonstrating that the teams are on track in the preparation of the spacecraft operations needed to achieve the mission's ambitious science goals.

How massive can neutron stars be?

Astrophysicists at Goethe University Frankfurt set a new limit for the maximum mass of neutron stars: They cannot exceed 2.16 solar masses.

Ariane 5 rocket puts European GPS satellites into orbit

An Ariane 5 rocket put four GPS satellites into orbit on Tuesday for Europe's Galileo navigation project, Arianespace said.

Infrared photometric observations reveal insights into the nature of the dwarf nova V2051 Ophiuchi

Brazilian astronomers have performed photometric observations of the dwarf nova V2051 Oph during its quiescent period, which revealed important insights into the nature of this object. The results were presented in a paper published January 4 on the arXiv pre-print repository.

The stories behind Aboriginal star names now recognised by the world's astronomical body

Four stars in the night sky have been formally recognised by their Australian Aboriginal names.

Image: Jupiter's colorful cloud belts

Colorful swirling cloud belts dominate Jupiter's southern hemisphere in this image captured by NASA's Juno spacecraft.

What stars will hatch from the Tarantula Nebula? NASA's flying observatory seeks to find out

To have a full picture of the lives of massive stars, researchers need to study them in all stages – from when they're a mass of unformed gas and dust, to their often dynamic end-of-life explosions.

Classified US satellite launched from California after delay

A rocket carrying a classified U.S. satellite has blasted off from California.

Virgin Galactic conducts 7th glide test of spacecraft

Virgin Galactic says the latest glide test of its space tourism rocket plane was a success, nearly reaching the speed of sound high over California.

Augmented reality 'sandbox' shows how gravity works

At the University of Iowa, you can see how gravity works by playing in the sand.

Is the cosmic colossus RCS2J2327 heavier than allowed?

An international team of scientists led by researchers from the Argelander Institute for Astronomy has mapped the mass distribution in a distant galaxy cluster (RCS2J2327). This cosmic colossus is located in the constellation Pisces at a distance of approximately 6.4 billion light years. According to current research results it consists of about 85 percent invisible dark matter.

Nature article turns theory of stellar evolution upside-down

This week, Nature published an article that could challenge the theory of stellar evolution.

Black hole spin cranks-up radio volume

Statistical analysis of supermassive black holes suggests that the spin of the black hole may play a role in the generation of powerful high-speed jets blasting radio waves and other radiation across the universe.

GeoCarb—a new view of carbon over the Americas

A new NASA Earth science mission in the early stages of design may achieve a transformational advance in our understanding of the global carbon cycle by mapping concentrations of key carbon gases from a new vantage point: geostationary orbit. Show More Summary

India launches rocket carrying dozens of satellites

India launched a rocket carrying dozens of satellites from India and six other countries Friday from its island space center.

NASA space telescopes provide a 3-D journey through the Orion Nebula

Astronomers and visualization specialists from NASA's Universe of Learning program have combined visible and infrared vision of the Hubble and Spitzer space telescopes to create an unprecedented, three-dimensional, fly-through view of the picturesque Orion Nebula, a nearby star-forming region.

Pentagon mum on fate of secret satellite

The mystery surrounding the fate of a secret military satellite deepened Thursday when the Pentagon refused to answer even simple questions about whether the mission to launch it had gone awry.

Hubble and Spitzer team up to find magnified and stretched out image of distant galaxy

An intensive survey deep into the universe by NASA's Hubble and Spitzer space telescopes has yielded the proverbial needle-in-a-haystack: the farthest galaxy yet seen in an image that has been stretched and amplified by a phenomenon called gravitational lensing.

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