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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
Strong evidence for the existence of planetary systems in the process of formation around other stars comes from
A)   detection of very regular pulses of radio energy from some stars.
B)   spectroscopic evidence of large quantities of molecules such as ammonia and methane, which can only exist in planetary atmospheres.
C)   direct photography of actual planets near other stars.
D)   periodic wobbling of the positions and spectral line displacements of several nearby stars.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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7 years ago
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symbo Author
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7 years ago
Thanks for your help!!
Butwhy
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This helped my grade so much Perfect
Holly72492
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This calls for a celebration Person Raising Both Hands in Celebration
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