Space
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Astronomy
Belt 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 -
Planetary Science
A Titan of a Mission
On Jan. 14, a space probe will plunge through the thick atmosphere of Saturn's moon Titan, looking for insights into the origins of life on Earth.
By Ron Cowen -
Astronomy
First 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 -
Planetary Science
Riddles on Titan
Two puzzles have emerged from the Cassini spacecraft's first close flyby of Saturn's largest moon, Titan.
By Ron Cowen -
Astronomy
More 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 -
Astronomy
What 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 -
Planetary Science
Titanic Close-up: Cassini eyes Saturn’s big moon
Using radar to penetrate the thick haze surrounding Saturn's moon Titan, the Cassini spacecraft has found evidence that the moon's surface is coated with hydrocarbons and dark patches that might be lakes of ethane or methane.
By Ron Cowen -
Astronomy
Renegade 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 -
Planetary Science
Mars Views Hint at Early Land of Lakes
New, high-resolution images unveiled this week not only offer supporting evidence that parts of ancient Mars resembled a land of lakes but also point out prime locations to look for fossils if life ever existed on the Red Planet.
By Ron Cowen -
Astronomy
Messy 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 -
Planetary Science
An early cosmic wallop for life on Earth?
New evidence from lunar meteorites suggests that debris bombarded the moon some 3.9 billion years ago, about the same time that life may have formed on Earth.
By Ron Cowen -
Planetary Science
Mars Rovers: New evidence of past water
Twin rovers on opposite sides of the Red Planet have found additional evidence that liquid water once flowed there.
By Ron Cowen