... of the atmosphere--water vapor, CO 2 (carbon dioxide) and CH 4 (methane)--are major contributors to the greenhouse effect ... Low-mass stars crush their atoms and become white dwarfs , about as big as Earth. ...
... of the atmosphere--water vapor, CO 2 (carbon dioxide) and CH 4 (methane)--are major contributors to the greenhouse effect ... Low-mass stars crush their atoms and become white dwarfs , about as big as Earth. ...
... of the atmosphere--water vapor, CO 2 (carbon dioxide) and CH 4 (methane)--are major contributors to the greenhouse effect ... Low-mass stars crush their atoms and become white dwarfs , about as big as Earth. ...