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173 matches found for "spectrograph"

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Ticking Stellar Time Bomb Identified

Using ESO’s Very Large Telescope and its ability to obtain images as sharp as if taken from space, astronomers have made the first time-lapse movie of a rather unusual shell ejected by a “vampire star...

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Hubble Observes LCROSS Impact Event

Hubble's Wide Field Camera 3 (WFC3) and Space Telescope Imaging Spectrograph (STIS) were pointed just off the southern limb of the moon to look for a cloud of vaporized material blasted into spac...

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Vanderbilt astronomers participate in new search for dark energy

The goal of the six-year project is to measure the spectra of 1.4 million galaxies and 160,000 quasars, extremely distant objects that shine more brightly than entire galaxies. The previous sk...

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First light for BOSS -- a new kind of search for dark energy

A part of the Sloan Digital Sky Survey III (SDSS-III), BOSS achieved "first light" on the night of September 14-15, when it acquired data with an upgraded spectrographic system across the e...

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Astronomers Begin New Search for Dark Energy

"Making a three-dimensional map is essential to understanding why the universe is expanding at an ever-accelerating rate," said UA astronomy professor Daniel Eisenstein, director of the Sloa...

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First solid evidence for a rocky exoplanet

The longest set of HARPS measurements ever made has firmly established the nature of the smallest and fastest-orbiting exoplanet known, CoRoT-7b, revealing its mass as five times that of Earth's....

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MHC's Dyar Receives NASA Grant for Mars Exploration

"I'm incredibly excited about this," said Dyar, who will share a portion of the grant with the Los Alamos National Laboratory. "Laser-induced breakdown spectroscopy (LIBS) is a gre...

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Rebirth of an icon: Hubble's first images since Servicing Mission 4

"This is one more important step in the confirmation of this wonderful mission. We Europeans are proud to be part of this and heartily congratulate the engineers, astronauts and scientists who go...

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Hubble Opens New Eyes on the Universe

Topping the list of new views are colorful, multi-wavelength pictures of far-flung galaxies, a densely packed star cluster, an eerie "pillar of creation," and a "butterfly" nebula....

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Astronomers Find Hyperactive Galaxies in the Early Universe

The fast-moving stars shed new light on how these distant galaxies, which are a fraction the size of our Milky Way, may have evolved into the full-grown galaxies seen around us today. The results will...

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New portrait of Omega Nebula's glistening watercolours

The Omega Nebula, sometimes called the Swan Nebula, is a dazzling stellar nursery located about 5500 light-years away towards the constellation of Sagittarius (the Archer).An active star-formi...

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Lightest exoplanet yet discovered

The planet, “e”, in the famous system Gliese 581, is only about twice the mass of our Earth. The team also refined the orbit of the planet Gliese 581 d, first discovered in 2007, placing it well withi...

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UK astronomers observe asteroid before it crashes into Earth

This is the very first time that an asteroid that hit the Earth has been studied before entering our atmosphere, allowing the scientists to predict whether it would explode and break up in the atmosph...

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Erratic Black Hole Regulates Itself

Black holes come in many sizes: the supermassive ones, including those in quasars, which weigh in at millions to billions of times the mass of the Sun, and the much smaller stellar-mass black holes wh...

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Hubble and ESO’s VLT provide unique 3D views of remote galaxies

By looking at this unique “history book” of our Universe, at an epoch when the Sun and the Earth did not yet exist, scientists hope to solve the puzzle of how galaxies formed in the remote past. ...

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