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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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Perhaps, Carr and a few others have imagined, LUCA was the descendent of microbial Martian invaders traveling by asteroid.
The analogs in the solar system are all asteroid-sized bodies much less massive than Earth.
As he sorts through it, Genge could conceivably come across a speck of 6626 Mattgenge, an 8-kilometer-wide asteroid near Mars named in his honor for his contributions to the study of cosmic dust.
Although the company has struggled, Bezos has invested to the tune of $1 billion a year in the company and rhapsodizes about a future in which humans live in massive habitats in orbit and mine asteroids.
NASA’s OSIRIS-REx mission successfully touched down on the asteroid Bennu and collected an overflowing amount of material to bring back to Earth.
Crudely put, if there are no major erosional processes operating on a planet like Mars, then older surfaces should have more impact craters from asteroid hits.
Over its 12-year mission, Lucy will visit the so-called Jovian Trojans—asteroids that share the same orbit as Jupiter but float hundreds of millions of miles ahead or behind the planet, trapped there by the giant planet’s gravity.
Some of the worst effects will be on observations to detect near-Earth asteroids.
This is because, over the past 4 billion years, its massive gravity has scattered comets and asteroids away that might otherwise have hit our planet.
That means scientists studying the material could learn more about the evolution of the moon and test out new techniques for estimating the age of geological samples from other planets, moons, and asteroids.

WORDS RELATED TO ASTEROID

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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