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We summarize the week's scientific breakthroughs every Thursday.
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AstronomyMagnetars: A missing link
A rare group of ultradense stars may be magnetars, objects with the strongest magnetic fields known in the universe.
By Ron Cowen -
AstronomyBirth of a Tiny Galaxy: In the universe, dwarfs may pop up last
Using the Hubble Space Telescope to observe a tiny galaxy still in the process of being born, astronomers are getting a rare glimpse of how larger galaxies formed early in the history of the universe.
By Ron Cowen -
Planetary SciencePluto and the Occult: Rare events illuminate Pluto’s atmosphere
Twice in the past month, astronomers were given a rare opportunity to peer through the tenuous atmosphere of Pluto.
By Ron Cowen -
Planetary SciencePlanetary Beginnings: Data reveal Earth’s quick gestation
Two new studies confirm that Earth's core formed in a hurry—during the first 30 million years after the solar system's birth.
By Ron Cowen -
AstronomyAn image to relish
The Hubble Space Telescope has captured a high-resolution image of an object that looks like a giant hamburger.
By Ron Cowen -
Planetary ScienceIt’s only a sharper moon
Astronomers have taken what appears to be the sharpest image of the moon ever recorded from Earth.
By Ron Cowen -
AstronomyLonely Universe
In a universe dominated by a mysterious antigravity force, dubbed dark energy, distant galaxies will eventually recede from each other faster than the speed of light and observers in our Milky Way some 50 billion years from now will see only a handful of other galaxies in the sky.
By Ron Cowen -
AstronomyClose Encounter
In mid-August, asteroid 2002 NY40 came within 524,000 kilometers of Earth. Students from Yale University using a telescope at Kitt Peak National Observatory captured a sequence of images of the 700-meter asteroid. Strung together into a movie, these images demonstrate the asteroid’s impressive speed, as seen from Earth over a period of two hours. The […]
By Science News -
Planetary ScienceLost in Space: Comet mission appears to have broken apart
A spacecraft that had just begun its journey to two comets has fallen silent and may have broken apart.
By Ron Cowen -
AstronomyX-Ray Chaos: Violence shows itself in a nearby galaxy
New X-ray observations provide additional evidence that Centaurus A, the nearest radio-wave-emitting galaxy to Earth that has a supermassive black hole, is a maelstrom of violence.
By Ron Cowen -
AstronomyVisible Matter: Once lost but now found
New observations confirm that most of the visible matter in the universe lies hidden in vast, hard-to-detect gas clouds between galaxies.
By Ron Cowen -
AstronomyIcy Split: Comet fragments into 19 pieces
A comet has split into 19 fragments strung out along a million-kilometer-long chain.
By Ron Cowen