![]() ![]() And we think that on - we know on Earth that all life requires liquid water. And what makes these three Goldilocks planets?īARNES: Well, it's just what you said in the intro that they are the right distance from the star where we think the energy from the star is such that it cannot overheat the planet and not, you know, leave it too cold so that the water on the surface can actually be in a liquid form. ![]() There's a lot of planets already in this particular star.įLATOW: Wow. There's very good evidence for a seventh. And so we were able to determine that they were, in fact, three of these planets in the Goldilocks zone.įLATOW: How many total planets did you find at that star?īARNES: So we know for sure there are six. And in this case, we saw lots of different signals. So we've monitored the position of the star, and if we see it start to move and those movements seem consistent with the presence of a planet, then we can say, aha, there is, in fact, a planet there. ![]() And this is a method by which we observe the star, actually, move in response to the gravitational pull of the planet. Welcome to SCIENCE FRIDAY.įLATOW: How - tell us how do you discover these planets?īARNES: Well, these biplanets, in particular, were discovered through an approach known as the radial velocity method. He joins us from KUOW there in Washington. Joining me now to talk more about it is my guest, Rory Barnes is research scientist at the University of Washington, member of the NASA Institute of Astrobiology's virtual planetary laboratory. So how did the scientists manage to find three Goldilock planets at once? What is the potential for life on these planets? Can we detect their atmosphere? Presence of water just yet? And just this week, researchers announced they had found three habitable planets orbiting just one star and it's only 22 light years away from us. And since then, more of these just right planets have been found, one at the time.īut a couple of months ago, the Kepler telescope found two in a distant solar system. It's been almost three years since astronomers found the first planet outside our solar system they called a Goldilocks planet, meaning that it's not too close, not too far, but just the right distance from its sun to potentially sustain life. ![]()
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