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Hot Topic Solar System Meteorites, Comets and Asteroids
Study Links Cosmic Impact and Climate Shift
Topic: Meteorites, Comets and Asteroids
Summary: For the first time, a global shift in Earth's climate has been linked to an impact event that occurred in Quebec 12,900 years ago.

Comet ISON to Fly by Mars
Topic: Meteorites, Comets and Asteroids
Summary: Before Comet ISON makes its approach of the Sun's outer atmosphere, it will first pay a visit to the red planet. The comet will pass Mars six times closer than it will come to Earth.

Chelyabinsk Meteorite Had Previous Collision or Near Miss
Topic: Meteorites, Comets and Asteroids
Summary: Before the Chelyabinsk meteorite fell to Earth, it either collided with another body in the Solar System or passed too close to the Sun.

Dwarf Planet Ceres – 'A Game Changer in the Solar System'
Topic: Meteorites, Comets and Asteroids
Summary: When NASA's Dawn mission investigates the potentially icy dwarf planet Ceres, it may find more than originally expected. The closest frozen body to Earth, Ceres may be as promising when it comes to hosting life than the more distant moons of the gas giants.

Around the World in 4 Days: The Chelyabinsk Meteor's Plume
Topic: Meteorites, Comets and Asteroids
Summary: Last winter, a meteor exploded over Chelyabinsk, Russia, and released more than 30 times the energy from the atom bomb that destroyed Hiroshima. Now, satellites have measured a thin, persistent dust belt that the event left in Earth's atmosphere.

Easily Retrievable Asteroids
Topic: Meteorites, Comets and Asteroids
Summary: Scientists have described an entirely new category of asteroid that could be easy to capture. The new study explains how such asteroids could be maneuvered into orbits accessible from Earth using today's technology.

OSIRIS-REx Will Help Us Learn How to Mine Asteroids
Topic: Meteorites, Comets and Asteroids
Summary: Asteroids could one day be a source of valuable resources for Earth, and for missions beyond our planet. An upcoming NASA mission could provide a valuable step toward accessing these numerous small bodies in our solar system.

Measuring Meteor Dust
Topic: Meteorites, Comets and Asteroids
Summary: Some 10 to 40 tons of meteoric dust enters Earth's atmosphere every day. Studying this material could teach astrobiologists about the early Solar System and provide clues about the origin of life on Earth.

A Cometary Graveyard
Topic: Meteorites, Comets and Asteroids
Summary: Astronomers have discovered a graveyard of comets resting in the asteroid belt between Mars and Jupiter.

Comet of the century?
Topic: Meteorites, Comets and Asteroids
Summary: A new study indicates that the approach of Comet C/2012 S1 ISON may not be as spectacular as scientists first thought. It is possible that the comet will disintegrate as it nears the Sun.

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