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Hot Topic Solar System Meteorites, Comets and Asteroids
New Evidence Asteroid or Comet Was the Last Straw for Dinosaurs
Topic: Meteorites, Comets and Asteroids
Summary: Scientists have now determined the most precise dates yet for the dinosaur extinction 66 million years ago and for the well-known impact that occurred around the same time.

Newly-Discovered Comet Will Put on a Show Next Winter
Topic: Meteorites, Comets and Asteroids
Summary: A newly discovered comet will make its first-ever journey into the inner solar system later this year. Comet ISON will appear bright in the night sky starting in November 2013.

February 15 Asteroid Fly By
Topic: Meteorites, Comets and Asteroids
Summary: The small near-Earth asteroid 2012 DA14 will pass so close to Earth on February 15 that it will pass inside the ring of geosynchronous weather and communications satellites.

New Study Counters Clovis Comet
Topic: Meteorites, Comets and Asteroids
Summary: A new study rebuts the hypothesis that an impact event 13,000 years ago brought about dramatic climate change in North America and led to the end of the Clovis culture.

Developing a Robotic Fleet to Mine Asteroids
Topic: Meteorites, Comets and Asteroids
Summary: Commercial asteroid hunters are planning to send a fleet of asteroid-prospecting spacecraft to hunt for resources to accelerate space development to benefit Earth.

NASA Rules Out Earth Impact in 2036 for Asteroid Apophis
Topic: Meteorites, Comets and Asteroids
Summary: Observations of the asteroid Apophis as it recently approached Earth show that the asteroid is bigger and less reflective than scientists had thought.

Asteroid Belt Around Vega
Topic: Meteorites, Comets and Asteroids
Summary: Astronomers have discovered what appears to be a large asteroid belt around the star Vega.

Exocomets May Be as Common as Exoplanets
Topic: Meteorites, Comets and Asteroids
Summary: Astronomers have reported the discovery of six possible comets around distant stars. The study suggests that 'exocomets' could be as common as planets in other stellar systems.

Sutter's Mill Meteorite Triggered a Scientific Gold Rush
Topic: Meteorites, Comets and Asteroids
Summary: A meteorite that fell in California this past spring has been identified as a rare carbonaceous chondrite composed of cosmic dust and presolar materials.

Vesta Impacts Delivered Carbon
Topic: Meteorites, Comets and Asteroids
Summary: NASA's Dawn spacecraft captured images of two enormous craters in the southern hemisphere of Vesta. Studies now show that the impacts not only altered Vesta's shape, but also its surface composition.

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