Tag Archive for 'Dark matter'

X-ray image of the Perseus galaxy cluster: a new study of the cluster has revealed a mysterious X-ray signal; this signal is represented in the circled data points in the inset, which is a plot of X-ray intensity as a function of X-ray energy. Image credit: Chandra / NASA / CXC / SAO / XMM / ESA / E. Bulbul et al.

Astronomers Detect Mysterious X-ray Signal in Andromeda Galaxy, 74 Galaxy Clusters

Jun 26, 2014 by News Staff

Astronomers using ESA’s XMM-Newton and NASA’s Chandra X-ray observatories have detected an unidentified X-ray emission line – a spike...

This image shows the Tadpole galaxy (Arp 188), a disrupted barred spiral galaxy located 420 million light-years from our planet. Material stripped from the galaxy during its collision with a smaller galaxy (seen in the upper left corner of the larger interaction partner) forms a long tidal tail. Young blue stars, star clusters and tidal dwarf galaxies are born in the tidal debris. These objects move in a common direction within a plane defined by the orientation and motion of their tidal tail. A similar galaxy interaction might have occurred in the Local Group in the past, which could explain the distribution of dwarf galaxies in co-rotating planes. Image credit: H. Ford, JHU / M. Clampin, STScI / G. Hartig, STScI / G. Illingworth, UCO, Lick / ACS Science Team / ESA / NASA.

Nearby Dwarf Galaxies Don’t Fit Standard Model of Cosmology, Study Says

Jun 11, 2014 by News Staff

According to a study led by Dr Marcel Pawlowski of Case Western Reserve University in Ohio, dwarf galaxies that orbit our Milky Way Galaxy and the Andromeda...

This computer simulation visualizes dark matter halo (Heidi Wu / Oliver Hahn / Risa Wechsler / Ralf Kaehler / Kavli Institute for Particle Astrophysics and Cosmology)

Dark Matter May Be Made Out of Majorana Fermions, Say Physicists

Jun 11, 2013 by News Staff

In a paper published online in the journal Physics Letters B (arXiv.org’s version), theoretical physicists from Vanderbilt University propose that dark...

The International Space Station taken during STS-134 mission's fourth spacewalk. The Alpha Magnetic Spectrometer (AMS) was installed one week earlier during the mission's first spacewalk (NASA)

Antimatter Hunter aboard International Space Station Detects Hints of Dark Matter

Apr 4, 2013 by Natali Anderson

An international team of scientists using the Alpha Magnetic Spectrometer aboard the International Space Station has announced the first results in the...

Giant Filament of Dark Matter Mapped in 3D

Oct 18, 2012 by Sergio Prostak

An international team of astronomers using NASA’s Hubble Space Telescope has studied a filament of dark matter in three dimensions for the first time. This...

Largest Ever 3D Map of Sky Released

Aug 9, 2012 by Sergio Prostak

Astronomers have constructed the largest-ever 3D map of massive galaxies and distant black holes, which will help better explain the mysterious ‘dark...

Plenty of Dark Matter near Solar System

Aug 9, 2012 by Sergio Prostak

A study led by the University of Zürich and the ETH Zürich has revealed the presence of large amounts of invisible ‘dark matter’ near the Solar System. The...

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