Send Story by Email

Article Image
Science

• arclein

Answering that question will be hard. It is quite probable that Earth 2.0 will be hundreds or even thousands of light years away; too far from us to detect trace chemical "biosignatures" that would suggest life. There is another way. We could lo

Enter one or more email addresses below. Separate multiple addresses with a semicolon (;) or a new line. Maximum 10 email addresses at one time.