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Results tagged “star” from Breaking Orbit

Space Candy: My Fair Carina

Posted on February 12, 2009 | 0 Comments

carina-photo.jpg

—Image courtesy ESO

Fluffy, colorful, sparkling... need I say more?

O, all right. The above beauty shot is the newest image of the Carina nebula, a tumultuous mix of massive stars, dust, and strong cosmic winds that sits about 7,500 light-years away.

Carina is full of massive young stars, over a dozen of which are 50 to 100 times the mass of our sun, according to the ESO press release.

Perhaps one of the nebula's most famous daughters is Eta Carina, a star more than a hundred times the sun's mass and about four million times brighter.

In the 1880s the star produced a faux-supernova—an explosion that didn't kill the star but did cast off material to create two lobes of hot gas named the Homunculus Nebula.

The bulbous results of this death spasm resemble what happened to another giant star, SN 2006gy, before it blew itself to bits.

That event was 240 million light-years away, but in 2007 it was dubbed the brightest supernova yet seen.

If Eta Carina—a relative next-door neighbor—goes out in the same way, astronomers think we'd not only be able to see light from the explosion, it would be visible during the day and would brighten the night sky enough to read a book.

Just about every house has a room where projects go to die.

The old computer that you were going to refurbish and give to charity, that set of fabric swatches that were meant to be a quilt, your brief and ill-advised fling with oil painting—all the remnants of things that could have been, but were instead swept into a less-traveled area and left to mingle and collect dust.

In our solar system, the junk room is the main asteroid belt, a region between Mars and Jupiter full of pieces that could have been planets.

Thanks to mighty Jupiter's gravity, those pieces of rocky and metallic debris just won't coalesce into planets, leaving us with plenty of fodder for the next doomsday scenario.

Now it turns out that our closest stellar neighbor, a sunlike star called Epsilon Eridani, has not one asteroid belt, but two: one in roughly the same spot as our belt and another about as far from the star as Uranus is from the sun.

epsilon-planets.jpg

—Image courtesy NASA/JPL-Caltech

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The moon
From dwarf planets to hot Jupiters, join NatGeo News space and tech editor Victoria Jaggard in a global discussion about all things extraterrestrial.


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