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star

‘Winking’ Star 550 Light-Years Away May Be Devouring Wrecked Planets

Ateam of U.S. astronomers including UCLA’s Benjamin Zuckerman has found evidence suggesting that the strange, unpredictable dimming of a star 550 light-years away may...
supernova

Puzzling New Supernova May Be from Star Producing Antimatter

An exploding star that continued to shine for nearly two years — unlike most supernovae, which fade after a few weeks — is puzzling...
planets

Four Earth-sized Planets Detected Orbiting the Nearest Sun-like Star

A new study by an international team of astronomers reveals that four Earth-sized planets orbit the nearest sun-like star, tau Ceti, which is about...
galaxies

Scientists Get Best Measure of Star-forming Material in Galaxy Clusters in...

The international Spitzer Adaptation of the Red-sequence Cluster Survey (SpARCS) collaboration based at the University of California, Riverside has combined observations from several of...
Exoplanets

New Branch in Family Tree of Exoplanets Discovered

Since the mid-1990s, when the first planet around another sun-like star was discovered, astronomers have been amassing what is now a large collection of...
Cosmic

Keck Cosmic Web Imager Achieves “First Light”

KCWI captures highly detailed spectral images of cosmic objects to reveal their temperature, motion, density, mass, distance, chemical composition, and more. The instrument is...
telescopes

Inventing Tools for Detecting Life Elsewhere

Recently, astronomers announced the discovery that a star called TRAPPIST-1 is orbited by seven Earth-size planets. Three of the planets reside in the "habitable...