Has Proof of Dark Matter Been Hiding on Ganymede?
Learning Stats
CEFRレベル
Total Words
Unique Words
難易度
字幕 (154 segments)
DownloadAstronomers are on a scavenger hunt that started almost 100 years ago,
searching for something right in front of their eyes.
They know something’s out there,
holding galaxies together and sculpting the
observable universe into this awesome shape.
And they’ve given it a name: dark matter.
The only problem is…no one has any idea what dark matter is.
It barely interacts with anything except through gravity.
It’s invisible, and all attempts to detect it directly have failed.
But maybe… just maybe, a giant moon orbiting Jupiter
has been collecting evidence of dark matter all along.
[♪ INTRO]
The problem with looking for dark matter is that
we don’t even really know what we’re looking for.
It’s like trying to go on an Easter egg hunt if you’ve never seen an egg before.
Also, the eggs are invisible.
Full subtitles available in the video player
Key Vocabulary (10)
A matter is a subject, situation, or problem that you are thinking about or dealing with. It can also refer to the physical substance that everything in the universe is made of.
Having very little or no light, or being a color that is closer to black than white. It is commonly used to describe the lack of light in a space or the intensity of a color shade.
The large round object that circles the Earth and shines at night. It reflects light from the sun and appears in different shapes throughout the month.
"The moon is important."
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