Sentences with phrase «away by asteroid»
Some scientists suspect that nitrogen gas existed on Mars, but was blasted away by asteroid impacts billions of years ago.
https://www.scientificamerican.com/ Not exact matches
Too, it need be considered why Jupiter is where it is and its size, for it's huge size (mass) has a strong gravitational effect on meteors and asteroids going near it, causing them to either be absorbed by it or deflecting them away from the earth.
In an alternate scenario, Jupiter and Saturn moved to their orbits over 5 million years by simply flinging away space rocks, but this would have visibly scarred the asteroid belt (Astronomical Journal, in press).
Understanding the dynamical channels around the Earth - moon system, says Lo, might make it relatively easy to deflect a potentially Earth - bound asteroid, like the one that wiped out the dinosaurs, by gently nudging it onto a manifold that would take it away from Earth.
Published in Nature Astronomy and funded by the Science and Technology Facilities Council and the European Research Council, the study finds the remains of shattered asteroids orbiting a double sun consisting of a white dwarf and a brown dwarf roughly 1000 light - years away in a system called SDSS 1557.
Stars quickly clear dust away from their vicinity by the force of their radiation, so the presence of a dusty disc suggests collisions between asteroids or comets are replenishing it.
Psyche would be a mission to something never examined before up close — a metallic asteroid, the metallic core of a protoplanet where the outer rocky layers (and any atmosphere) had been «stripped away» by a violent impact with another object, according to planetary scientists.
Last week, Planetary Society Shoemaker NEO grant winner Gary Hug of Kansas, USA discovered the asteroid 2012 SY49 that flew by Earth about 2 lunar distances away later in the week.
The human fossil fuel CO2 emissions spike is more like an asteroid impact than the slow degassing of CO2 from metamorphic decarbonization of carbonate rocks at subduction zones by the slow grinding away of plate tectonics.