How Stars Are Formed: From Giant Gas Clouds to Shining Stars Every star visible in the night sky has a
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Black Hole Tidak Memancarkan Cahaya, Jadi Bagaimana Ilmuwan Bisa Tahu Ia Ada?
Black hole hampir terdengar seperti objek yang mustahil ditemukan. Ia tidak memiliki permukaan bercahaya seperti bintang. Setelah melewati event horizon,
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Kita Bisa Melihat Galaksi Jutaan Tahun Cahaya Jauhnya, Jadi Kenapa Kita Tidak Bisa Melihat Ujung Alam Semesta?
Kita Bisa Melihat Galaksi Jutaan Tahun Cahaya Jauhnya, Jadi Kenapa Kita Tidak Bisa Melihat Ujung Alam Semesta? Malam yang benar-benar
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There’s Only One Galaxy Back There, So Why Can a Telescope See It Stretched Into Arcs, Rings, or Even Multiple Copies?
Look at some deep-space photographs and something strange begins to happen. Most galaxies look roughly like what you would expect:
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We Can Barely See the Planet, So How Do Scientists Know What Its Atmosphere Is Made Of?
Imagine trying to figure out what is floating in the air above a world hundreds of light-years away. You cannot
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These Frozen Moons Look Completely Dead, So Why Do Scientists Keep Looking for Life Beneath the Ice?
From a distance, they do not look promising. No forests. No rivers. No visible seas. No breathable atmosphere. No warm
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Why We See the Same Side of the Moon Even Though the Moon Rotates
Look at the Moon tonight, then look at it again several nights from now. Its shape may appear different. A
Continue readingWhy Do Stars Twinkle but Planets Usually Don’t?
Look at the night sky on a clear evening and you may notice something strange. Some bright points of light
Continue readingWhy the Moon Looks Bigger Near the Horizon—Even Though It Hasn’t Actually Grown
You step outside shortly after sunset and see the Moon rising behind distant buildings. It looks enormous. The lunar disk
Continue readingThe Stars Look Packed Together, So Why Is Space Actually Almost Completely Empty?
Look at the night sky from a dark location and space hardly seems empty. Thousands of points of light appear
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