Phrases d'exemple en Anglais avec « asteroids »

Don't confuse comets and asteroids.
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Don't mix up comets and asteroids.
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Previous episodes of mass extinctions were driven by natural disasters such as asteroids, but this one is driven by humans.
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Soon, the space agencies launched thousands of robot probes all over the Solar System to explore planets, moons, asteroids, and comets...
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Its massive gravity well tugs many asteroids from the outer belt inwards.
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What's the difference between asteroids and comets?
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Eight known planets and their moons, along with comets, asteroids, and other space objects orbit the Sun.
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Mars has two moons, Phobos and Deimos, which have unusual shapes. Scientists think these potato-shaped moons were once asteroids captured by Mars' gravitational pull.
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Mars has two small natural satellites, Phobos and Deimos. They are highly irregular in shape and are believed to be asteroids captured by Mars' weak gravitational field.
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Asteroids can be a few feet to several hundred miles wide.
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The asteroid belt contains at least 40,000 asteroids that are more than 0.5 miles across.
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Astronomers think that if it were not for the giant planet Jupiter exerting its gravitational force on the asteroids in the belt, the inner planets would be constantly bombarded by large asteroids.
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Clyde Tombaugh also discovered several star clusters, a comet and more than a hundred asteroids.
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The Earth has been hit before by asteroids and will be again someday.
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The asteroids capable of causing a global disaster if they hit the Earth are extremely rare.
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The mission will help scientists investigate how planets formed and how life began, as well as improve our understanding of asteroids that could impact Earth.
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The theory of panspermia states that life originated on another planet (or planets) and came to earth on asteroids, meteors, or other cosmic objects.
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At least 100,000 rocky objects called asteroids reside between Mars and Jupiter.
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Scientists believe that asteroids are the leftover building blocks of our solar system planets.
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The spacecraft’s many science instruments will study the asteroids’ surface features, their varied landscapes, and perhaps even their internal structure.
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The sun is at the center of the solar system, and the planets, asteroids, moons, and comets orbit the sun.
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Although comets and asteroids are both tiny objects that orbit in the solar system, their composition differs. Asteroids are mostly rock with some ice, while comets are mostly ice with some rock.
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Asteroids are not close to each other. They are roughly 1 million miles from each other.
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Besides the sun, the solar system consists of planets, moons, asteroids, and comets.

"We don’t have any rocks on Earth that are older than about 4 billion years old, so we don’t know exactly how much volcanic activity there was or how heavily Earth was bombarded by asteroids” said Barbara Cohen, a planetary scientist who heads Goddard’s Mid-Atlantic Noble Gas Research Laboratory.

Two asteroids collided in deep space.

When an astronomer discovers one of these asteroids he does not give it a name, but only a number.

Bennu is a primordial artifact preserved in the vacuum of space, orbiting among planets and moons and asteroids and comets.

Studying the sample from Bennu could reveal major insights about the formation and nature of the solar system, asteroids, and other small celestial bodies.

2020 was a record year for discovering new asteroids.

Astronomers registered 2,958 previously unknown near-Earth asteroids over the course of the year, the most since 1998, the year the U.S. space agency, NASA, began tracking such objects.

How are asteroids and comets different?

Trojan asteroids are believed to be artifacts from when the solar system was formed, and scientists hope that by studying them, they can better understand how the solar system evolved.

Tom Statler, Lucy program scientist, told VOA in an email that Trojan asteroids are "leftovers from the formation of our solar system's giant planets — Jupiter, Saturn, Uranus, and Neptune" and that "the formation and early evolution of the Earth was influenced by what was happening to the giant planets farther from the sun.

Wil Santiago, an engineer at Lockheed Martin Space, told NASA TV, "It's like going back in time. These asteroids are time capsules."

The Trojan asteroids "are the last major population of objects in our solar system that have not yet been seen close-up by spacecraft," Statler said.

Lucy aims to fly near seven of Jupiter's Trojan asteroids.

Thousands of asteroids surround the giant planet.

The asteroids are believed to be artifacts from when the solar system was formed.

The scientists hope that by studying the asteroids, they can better understand how the solar system evolved.

On the 1st of November of 2021, I joined Hans the Netherlander at his table in the cafe. The day after Halloween was rainy outside. Whilst I was drinking iced green tea, Hans gave me a piece of brown candy. He took out a jar of peanuts and offered me, but I said that I get pimples from peanuts. As a child in Quezon City, my family had a peanut farm near our lot; we boiled them, and I ate, as I was not allergic as a prepubescent. We then talked all about astronomy: exoplanets, asteroids, and the moons of the gas giants. Titan, a moon of Saturn, is specially stunning with its black methanic rivers, lakes, and seas. Hans said that the next fifty years will be exciting for astronomy. As we talked, a big handsome man with a muscular build came in, ordered coffee, and left.

Small moons, asteroids, and comets, for example, are too small for their gravity to pull them into a sphere.

Asteroids over ten kilometers wide could cause dinosaur-level mass extinctions and would be bad for the stock market.

Some of these asteroids could hit Earth.

The U.S. space agency, NASA, says there are slightly fewer massive, planet-buster asteroids and far fewer mid-sized, city-buster asteroids than previously thought in near-Earth orbit.

Once the asteroids are spotted and their orbits determined, an earthbound asteroid can be nudged slightly off course with a satellite deflector or a high velocity projectile, or blown up with nuclear weapons, causing it to miss its deadly rendezvous.

The new topographical data shows a more complex moon than previously thought, one bombarded by two distinct populations of asteroids or comets in its turbulent early history.

Can nuclear weapons obliterate asteroids?

The new topographical data shows a more complex moon than previously thought, one bombarded by two distinct populations of asteroids or comets in its turbulent early history. The record of those ancient bombardments, which also pummeled the young Earth, is preserved in the moon's heavily cratered surface.

Asteroids are rocky bodies that orbit the sun, mostly in a belt between Mars and Jupiter.