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Early Universe ‘Warmed Up’ Later than Previously Believed

A new study from Tel Aviv University reveals that black holes, formed from the first stars in our universe, heated the gas throughout space...

It was four all along: More arms in Milky Way than...

A 12-year study of large stars has reaffirmed that our Galaxy has four spiral arms, following years of discussion sparked by pictures taken by NASA's Spitzer area Telescope that solely showed 2 arms.

Astronomers discover new kind of supernova

Supernovae were always thought to occur in two main varieties. But a team of astronomers including Carnegie's Wendy Freedman, Mark Phillips and Eric Persson...

Discovery of Big Space Object Renews Debate About Pluto’s Status

The identifying of a massive, 745-mile-diameter object at the far reaches of our solar system has reopened a debate regarding the planetary status of that ninth pile from the sun, Pluto. National Geographic reports that the newly-noticed space item is named Quaoar (pronounced "KWAH-o-ar") and is located in the Kuiper belt, a celestial district 4 billion miles from Earth and relatively close to Pluto. Like the Disney dog-named sphere, Quaoar is composed of rock and ice. Also, its orbit is similar to Pluto's but differs from the eight other planets. "Pluto is the largest known Kuiper belt object," a University of Hawaii astronomer says. "Some people think of it as a planet as well. That's fine, of course, but the reasons for doing so are historical, or sociological at best."

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