Scientists discover why silver clusters emit light

Clusters of silver atoms captured in zeolites, a porous material with small channels and voids, have remarkable light-emitting properties. They can be used for more efficient lighting applications as a substitute for LED ...

A trace of galaxies at the heart of a gigantic galaxy cluster

Very large yet faint galaxies have been found where no one would have expected them – in the middle of a giant galaxy cluster. Heidelberg astronomers discovered the extremely-low density galaxies, known as ultra-diffuse ...

Is dark matter 'fuzzy'?

Astronomers have used data from NASA's Chandra X-ray Observatory to study the properties of dark matter, the mysterious, invisible substance that makes up a majority of matter in the universe. The study, which involves 13 ...

Image: Hubble takes flight with the toucan and the cluster

It may be famous for hosting spectacular sights such as the Tucana Dwarf Galaxy and 47 Tucanae (heic1510), the second brightest globular cluster in the night sky, but the southern constellation of Tucana (The Toucan) also ...

Gaia produces stellar density map of the Milky Way

This image, based on housekeeping data from ESA's Gaia satellite, is no ordinary depiction of the heavens. While the image portrays the outline of our Galaxy, the Milky Way, and of its neighbouring Magellanic Clouds, it was ...

NGC 602: Taken under the 'wing' of the small magellanic cloud

(Phys.org) —The Small Magellanic Cloud (SMC) is one of the Milky Way's closest galactic neighbors. Even though it is a small, or so-called dwarf galaxy, the SMC is so bright that it is visible to the unaided eye from the ...

Hubble finds appearances can be deceptive

(Phys.org)—Globular clusters are roughly spherical collections of extremely old stars, and around 150 of them are scattered around our galaxy. Hubble is one of the best telescopes for studying these, as its extremely high ...

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