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Hot Topic Solar System Meteorites, Comets and Asteroids
Did a Comet Kill the Dinosaurs?
Topic: Meteorites, Comets and Asteroids
Most scientists believe that the extinction of the dinosaurs was brought about by an asteroid impact. However, a new study favors a different explanation. Instead, the impact may have been caused by a high-velocity comet.

Dawn is in Silent Pursuit of Ceres
Topic: Meteorites, Comets and Asteroids
NASA's Dawn spacecraft left the protoplanet Vesta six months ago and is now traveling through the depths of the main asteroid belt in pursuit of the dwarf planet Ceres.

Is NASA Planning an Asteroid-Capture Mission?
Topic: Meteorites, Comets and Asteroids
Scientists are wondering if NASA could capture a small asteroid and bring it in near proximity to our Moon. In doing so, the asteroid would be more accessible for human explorers.

Ancient Asteroid Caused Global Firestorm
Topic: Meteorites, Comets and Asteroids
A new study indicates that the impact responsible for the Chicxulub crater in Mexico's Yucatan Peninsula triggered a global firestorm that led to global mass extinction.

Earth's Moon and Asteroids Share Cosmic History
Topic: Meteorites, Comets and Asteroids
A new study shows that the Moon has more in common with large asteroids than previously believed. The research could shed light on a period early in Earth's history when our planet was bombarded by impacts.

Aerial Survey Confirms Ancient Impact
Topic: Meteorites, Comets and Asteroids
Airborne geophysical surveys have been used to identify a 470-million-year-old meteorite crater near Decorah, Iowa in the United States.

Assessing the Damage of the Russian Meteor
Topic: Meteorites, Comets and Asteroids
Scientists have used the the “NEOImpactor” tool to analyze the recent Russian meteor event. This tool is designed to investigate the risks faced by the Earth from asteroid impacts.

Developing Technologies to Save the Earth From Asteroids
Topic: Meteorites, Comets and Asteroids
On April 17, scientists will venture to Washington D.C. to present research as part of NASA's Technology Day on the Hill. One project focuses on protecting the Earth from asteroids using a 'one-two' nuclear punch.

Comet Will Make Close Approach to Mars
Topic: Meteorites, Comets and Asteroids
Comet 2013 A1 (Siding Spring) will make a very close approach to Mars in October 2014.

Evidence That Comets Could Have Seeded Life on Earth
Topic: Meteorites, Comets and Asteroids
A new experiment simulating conditions in deep space reveals that the complex building blocks of life could have been created on icy interplanetary dust and then carried to Earth, jump-starting life.

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