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We summarize the week's scientific breakthroughs every Thursday.
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AstronomyBig Bang Confirmed: Seeing twists and turns of primordial light
The latest observations of the cosmic microwave background reveal that photons from adjacent patches of the sky have slightly different polarizations.
By Ron Cowen -
AstronomyFound: Gamma-ray background information
Resolving a 30-year-old mystery, astronomers say they have identified the source of the faint, high-energy glow of radiation known as the gamma-ray background.
By Ron Cowen -
AstronomyHole in the Middle: Are midsize black holes the missing link?
Two teams of astronomers reported that they had confirmed the existence of a new class of black hole.
By Ron Cowen -
AstronomyReflecting on the Kuiper belt
A new study suggests that at least some members of the Kuiper belt, the reservoir of comets and other frozen objects that lie beyond the orbit of Neptune, reflect more sunlight and are considerably smaller than previously calculated.
By Ron Cowen -
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