Examples of using A comet in English and their translations into Chinese
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It might once have been a comet, or it could have strayed from a population of dark objects in the main asteroid belt.
If 2016 WF9 turns out to be a comet, it would be the tenth discovered by the spacecraft since reactivation.
At first, astronomers thought‘Oumuamua must be a comet, based on decades of scientific literature that predicted its arrival.
At first it was believed that the object was more likely to be a comet since comets generally have more planet crossing orbits.
There's the first-ever view of the surface of Pluto, an up-close encounter with a comet, and an entire solar system photographed in its infancy.
Later this year, NASA will need to decide between that mission and another finalist proposal, which would collect a sample from a comet.
The main difference between an asteroid and a comet is that a comet shows a coma due to sublimation of near-surface ices by solar radiation.
If so, then this would be the first time that the Goldstone radar has imaged a comet from such a close distance.
When a comet approaches the inner solar system, the sun begins to warm the ice on and near the comet's surface.
In my final year at Healdtown, an event occurred that for me was like a comet streaking across the night sky.
Also unlike‘Oumuamua, a mysterious object scientists had trouble characterizing, Borisov is clearly a comet with observable surface activity and a glowing tail.
He said scientists pored over it for roughly a week after its discovery and concluded that it was a comet at first.
The genius,” wrote German philosopher Arthur Schopenhauer,“lights on his age like a comet into the paths of the planets.”.
BERLIN(AP)- The European Space Agency has confirmed the time and place it will attempt to land the first spacecraft on a comet.
Phaethon is a well-characterized and slightly bizarre asteroid, about 3.6 miles in width, that more closely resembles a comet.
Evidently it turned out that this patch was not moving, and was thus indeed not a comet, but a nebula.
In the year 2005, NASA launched a probe called Deep Impact, which slammed into-- slammed a piece of itself into the nucleus of a comet.
Iowa State University scientist Marengo Massimo pointed out, we have found that these large areas of objects may be a comet.
On January 1, 1801, Giuseppe Piazzi discovered the first asteroid, which he initially thought to be a comet.