At a recent conference celebrating the 50th anniversary of space travel, scientists predicted that the next 50 years will uncover that we're not alone in the universe.
Some researchers believe that time may be sooner than later.
Scientists at the Geneva Observatory of Switzerland have reportedly discovered a "second Earth," a planet that's circling a star 20 light-years away. According to an article from the Guardian in the United Kingdom, the scientists said the planet's warm and rocky conditions are most like Earth's, meaning that it could likely support water and life.
"We wouldn't be surprised if there is life on this planet," astronomer Stephane Udry said in the article.
Here are some details disclosed about the planet: It's orbiting one of Earth's nearest stars, Gliese 581, in the constellation of Libra. The scientists believe it's 1.5 times the size of Earth, with a year of 13 days. They also said that the planet could have an atmosphere.
The Swiss scientists are among others searching for habitable planets. According to the article, the same team found another large planet orbiting Gliese 581 two years ago. But after further investigation, they found this latest planet, which they've named Gliese 581c.