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Space Science
7mins
30 years ago, we didn’t know other stars had planets orbiting them. Now, we may be on the verge of finding Earth’s Twin. Sara Seager explains.
24mins
“Deep down the natural endpoint of this whole goal of looking for planets is to answer the question: are we alone?”
18mins
"There's a long history of people claiming planets which look Earth-like, Earth 2.0, Earth twins."