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A body that strikes another, usually larger body in an impact, as a comet striking a planet.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Japan has currently completed two successful missions, orbiter Hiten in 1990 (semi-successful) and combined orbiter and impactor mission Kaguya in 2007.
When Chandrayaan 1 launched in 2008, it was only equipped with an orbiter and an impactor. While the orbiter continued to revolve around the Moon for around a year, the impactor was simply dropped from Chandrayaan 1 onto the surface of the moon.
The Japan Aerospace Exploration Agency, or JAXA, said that Hayabusa2 dropped a "small carry-on impactor" made of copper onto the asteroid Friday morning, and that data confirmed the spacecraft safely evacuated and remained intact.
The company has also debuted its new patent pending Valor Vertical Shaft Impactor (VSI).
"When an impactor hits the ground, there is a tremendous amount of force like an explosion," Beyer said in a ( statement .
Naperville, IL, December 12, 2018 --( Local Entrepreneurs Jeff Levin (Founder of the and Loren Michaels Harris (Founder of the Power of We Symposium) announced today they are on a quest to find and discover The Next Impactor. This world needs hope, inspiration & positive role models driven to impact others.
For one, most of the Moon would have been made from the impactor's mantle, but measurements of isotopic ratios show that the Moon and Earth are made of exactly the same stuff.
has signed a definitive agreement to acquire the assets of Georgia, US-based Medical Enterprises Distribution, LLC, a privately held developer of surgical impactor technology, to transform orthopaedic surgery by building a differentiated and comprehensive digital surgery platform, the company said.
The 8.8-ton Hypervelocity Asteroid Mitigation Mission for Emergency Response (HAMMER) spacecraft would steer its "impactor" into a space rock or detonate a nuclear device,BuzzFeedreported.
As a result, the target and impactor are rapidly compressed to very high pressures and heated to enormous temperatures.
A dynamic model of the impactor system using four different impact velocities was used to consider the impact force, compression strain, and energy as biomechanical criteria for the flexible pelvis model.