Astronomy
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AstronomyExplosive Tales
Four hundred years after the explosion of the Kepler supernova, the last such stellar eruption in our galaxy, astronomers have examined the supernova's remnant with state-of-the-art telescopes that view it in infrared, optical, and X-ray light.
By Ron Cowen -
AstronomyExtrasolar Planet News: Superplanet or brown dwarf?
New observations of an oddball planetary system 150 light-years from Earth suggest that some planets either are superheavy, more than 17 times as massive as Jupiter, or that they form from disks of gas and dust that encircle not just a single star, but two starlike objects.
By Ron Cowen -
AstronomyBelt Tightening: Icy orbs are surprisingly small
Objects in the distant reservoir of comets known as the Kuiper belt are intrinsically much brighter, and therefore smaller, than previously thought.
By David Shiga -
AstronomyFirst Light: Faint object may be youngest star detected
Peeking into the dusty core of a dark cloud seemingly devoid of stars, astronomers have found a faintly glowing body that could be the earliest glimmerings ever recorded from a newborn star.
By Ron Cowen -
AstronomyMore moons for Saturn
With the discovery of two additional moons, the ringed planet now has a retinue of 24 known satellites orbiting it.
By Ron Cowen -
AstronomyWhat a blast!
Astronomers have glimpsed a rare, long-lived neutron-star explosion that may represent the burning of carbon just beneath the surface of this superdense star.
By Ron Cowen -
AstronomyRenegade stars in sun’s neighborhood
Some stars in the neighborhood of the sun may be renegades from the center of our galaxy.
By Ron Cowen -
AstronomyMessy Findings: Planets encounter a violent world
Some young planets continue to take a beating hundreds of millions of years after they've formed.
By Ron Cowen -
AstronomyPlanet Signs? Sifting a dusty disk
Infrared spectra of a disk of debris surrounding the young star Beta Pictoris reveals three distinct bands of dust, suggesting the location of a possible planet flanked by belts of asteroids or comets.
By Ron Cowen -
AstronomyMore space sugar
Astronomers have found a second, colder source of the simple sugar glycoaldehyde in a dust and gas cloud 26,000 light-years from Earth.
By Ron Cowen -
AstronomyBig Smash: Galaxy clusters in collision
Astronomers have unveiled the most detailed image ever taken of the collision of two clusters of galaxies.
By Ron Cowen -
AstronomySky Lights: Picture might show an extrasolar planet
A faint point of red light may be the first picture ever taken of a planet outside the solar system.
By Ron Cowen