Galaxies: Some assembly required

New research using the world's largest telescope at the Keck Observatory in Hawaii has revealed two distinct populations of star clusters surrounding galaxies that have radically different chemical composition.

Dark matter filament studied in 3-D for the first time

(Phys.org)—Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy clusters known, ...

Multiple mergers generate ultraluminous infrared galaxy

A team of astronomers led by Professor Yoshiaki Taniguchi (Ehime University) has concluded that the ultraluminous infrared galaxy (ULIRG) Arp 220 developed from a multiple merger among four or more galaxies. Their new imaging ...

First light of powerful new Keck Observatory MOSFIRE instrument

(Phys.org) -- Engineers and astronomers are celebrating the much anticipated first light of the MOSFIRE instrument, now installed on the Keck I telescope at W. M. Keck Observatory. MOSFIRE (Multi-Object Spectrometer For Infra-Red ...

Spitzer and Hubble telescopes find rare galaxy at dawn of time

(PhysOrg.com) -- Astronomers using NASA's Spitzer and Hubble space telescopes have discovered that one of the most distant galaxies known is churning out stars at a shockingly high rate. The blob-shaped galaxy, called GN-108036, ...

Caltech-led team of astronomers finds 18 new planets

Discoveries of new planets just keep coming and coming. Take, for instance, the 18 recently found by a team of astronomers led by scientists at the California Institute of Technology (Caltech).

Lasers spectacular

The new laser on the Keck I telescope has inspired two avid Mauna Kea photographers to capture the light show in a series of stunning images and videos. We’ve collected some of their work here for your entertainment ...

First galaxies were born much earlier than expected (w/ video)

(PhysOrg.com) -- Using the amplifying power of a cosmic gravitational lens, astronomers have discovered a distant galaxy whose stars were born unexpectedly early in cosmic history. This result sheds new light on the formation ...

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