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Comets

Comets Are Just Like Deep Fried Ice Cream, NASA Scientists Say

The Huffington Post | Jacqueline Howard | Posted 02.16.2015 | Science

Astronomers have long known that comets are cosmic snowballs with a soft interior and hard surface. But the exact composition of that surface -- and h...

Scientists Pinpoint Cause Of World's Second-Biggest Impact Crater

The Huffington Post | David Freeman | Posted 11.18.2014 | Science

What kind of object punched a huge hole in Ontario? Since the 1960s, scientists have believed that the Sudbury Basin, a vast crater in Northern Ont...

A Comet's Tale!

Dr. Sten Odenwald | Posted 11.05.2014 | Science
Dr. Sten Odenwald

It will be fun to see what turns up in the Rosetta and Philae images and data from Comet 67P/Churyumov-Gerasimenko! Astronomy is always full of surprises when you see something at high resolution for the first time.

WOW: First Close-Ups Of Comet Show 'Scientific Disneyland'

Space.com | Miriam Kramer | Posted 08.06.2014 | Science

It's only been a few hours since Europe's Rosetta spacecraft arrived at a comet in deep space, but the robotic probe is already beaming incredible cl...

Comet Chaser Makes Surprise Discovery

AP | Posted 09.16.2014 | Science

BERLIN (AP) - A space probe aiming to become the first to land on a comet has taken images that appear to show its target could actually be two separa...

Life on the Billionth Rock From the Sun

Seth Shostak | Posted 08.09.2014 | Science
Seth Shostak

I've always regarded asteroids as somewhat like dinosaurs: mildly interesting and faintly dangerous. But I'm now thinking that they might be a profitable real estate investment.

Did Dark Matter Kill the Dinosaurs?

Amir Aczel | Posted 05.10.2014 | Science
Amir Aczel

New research suggests a tantalizing hypothesis: that the dark matter in the Milky Way caused the mass extinction 65 million years ago that killed off the dinosaurs, as well as other mass extinctions, which seem to take place somewhat regularly, with a period of some 35 million years.

After Long Sleep, Comet Chaser Gets Wake-Up Call

Space.com | Charles Q. Choi | Posted 01.25.2014 | Science

Rosetta, the first spacecraft built to orbit a comet and land a probe on these icy nomads, is now waking up after more than two years of slumber, an...

PHOTOS: 500 Years Of Greatest Comets Ever Seen

SPACE.com | Joe Rao | Posted 12.26.2013 | Science

When Comet ISON was discovered and a preliminary orbit for it was worked out, it was initially announced that it could be the "comet of the century....

Icy Alien Dust Links Ancient Famine To Celebrated Comet

LiveScience | Mike Wall | Posted 01.23.2014 | Science

SAN FRANCISCO — The ancients had ample reason to view comets as harbingers of doom, it would appear. A piece of the famous Halley's comet likely s...

Did Comet Survive After All?

AP | KARL RITTER | Posted 11.29.2013 | Science

STOCKHOLM (AP) — A comet that gained an earthly following because of its bright tail visible from space was initially declared dead after essentiall...

What Happened To The Comet?

AP | KARL RITTER | Posted 01.28.2014 | Science

STOCKHOLM (AP) — Once billed as the comet of the century, Comet ISON apparently was no match for the sun. Images from NASA spacecraft showed the co...

Comet ISON of the Season

Dr. Tyler Nordgren | Posted 01.26.2014 | Science
Dr. Tyler Nordgren

Comet ISON is now two days away from a close encounter with the Sun, an encounter that it very well may not survive. On Thursday ISON will sweep around the Sun, clearing its roiling surface by as little as 800,000 miles. After Thanksgiving, one of three fates will have come to pass.

Here's How YOU Can Spot The 'Comet Of The Century'

The Huffington Post | Posted 12.02.2013 | Science

It's a cosmic cliffhanger. Will comet ISON pull through its close encounter with the sun -- or be cooked to oblivion? As long as ISON survives on N...

Will 'Comet Of Century' Survive?

AP | MARCIA DUNN | Posted 11.25.2013 | Science

CAPE CANAVERAL, Fla. (AP) — For months, all eyes in the sky have pointed at the comet that's zooming toward a blisteringly close encounter with the ...

WATCH: NASA Explains 'How To Cook A Comet'

The Huffington Post | Posted 11.22.2013 | Science

You don't need NASA to tell you how to cook an egg. Mac and cheese? You can handle that too. But when it comes to knowing how to "cook" a comet, NASA'...

LOOK: 'Comet Of The Century' Dances Through Constellations

The Huffington Post | Macrina Cooper-White | Posted 11.20.2013 | Science

Grab your binoculars, stargazers. Touted as the "comet of the century," Comet ISON is in full "outburst mode," having brightened dramatically over the...

LOOK: Strange Space Rock Has HOW MANY Tails!?

AP | MARCIA DUNN | Posted 11.08.2013 | Science

CAPE CANAVERAL, Fla. -- CAPE CANAVERAL, Fla. (AP) — This is one strange asteroid. The Hubble Space Telescope has discovered a six-tailed asteroid i...

PHOTO: Long-Awaited Comet Looks 'Downright Weird,' Observers Say

Space.com | Joe Rao | Posted 11.01.2013 | Science

With just one month to go before its dramatic solar rendezvous, skirting to within a hairbreadth of the surface of the sun, Comet ISON continues to b...

11 Cool Facts About Comets

The Huffington Post | Macrina Cooper-White | Posted 10.23.2013 | Science

The world is set to go comet crazy next month, as the highly anticipated Comet ISON comes into view. "Comet ISON has the potential to be among the ...

WATCH: Space Probe's Long Hibernation To End

Space.com | Megan Gannon | Posted 10.16.2013 | Science

Europe's comet-chasing space probe Rosetta has been hibernating for more than two years, but in January, the spacecraft will be jolted awake to prepar...

Tests Reveal Big Story Behind Little Black Pebble

The Huffington Post | Sara Gates | Posted 10.08.2013 | Science

It might not look like much, but scientists in South Africa are calling a little black pebble the first evidence that a comet hit the Earth millions o...

WATCH: Giant Balloon Poised To Hunt 'Comet Of The Century'

Space.com | Leonard David | Posted 09.27.2013 | Science

A colossal NASA balloon is poised to carry a free-hanging gondola sky-high on a mission to take a gander at celestial grandeur: Comet ISON. Weather ...

Space Agency Gives Up On Spacecraft

AP | ALICIA CHANG | Posted 11.20.2013 | Science

LOS ANGELES — A spacecraft that gave scientists their first peek into a comet's icy interior will explore no more, NASA said Friday. The space ...

WATCH: Comet Makes Suicidal Plunge Into Sun

Space.com | Mike Wall | Posted 08.20.2013 | Science

A small comet dove headlong toward the sun this week in a cosmic death-dive captured on camera by a spacecraft — an opening act of sorts for the hi...