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Learn more about the evolution of our furry companions.
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Animal and human forms of communication may be much closer than we previously thought.
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Comets carrying chemicals necessary for life may have come to Earth billions of years ago.
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NASA is sending a robotic rover called "Curiosity" to find out if there is life on Mars.
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Andrea Ghez asks: Is there a supermassive black hole at the center of our galaxy?
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As a kid, Janna Levin loved cosmology—now, she’s an award-winning author and host.
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Dark energy is spreading the universe apart—what’s it mean for astronomy in the future?
