Apr 28, 2026 · 37 min · 17 segments
Where should we actually be looking for life beyond Earth? Astronomers have identified 45 Earth-like worlds that could be among the most promising places to search for biosignatures—chemical signs of…
Lisa KalteneggerGuest
Franck MarchisHost
Abigail BohlGuestspeaker_3Guest
Well, we just above 6,000 known worlds that circle around other stars, and among those are, as you said, 45, so more than, more than 40 planets that could potentially could be like ours.
And what we get from that is one out of five stars has a planet that could potentially be like ours, and that gets us to billions of possibility.
So Abby and Gilles and Lucas, the team that wrote this paper, identified these amazing planets that are within the limits of the habitable zone and small enough to be rocks like ours.
But for me, an extra excitement are these planets on the edge because a planet on the edge teaches you where habitability ends.
And I think that, to me, as a scientist, of course, I wanna find life, not even a question.
But being able to probe our understanding of how much light is too much, so you evaporate all your ocean, or how long you can keep a planet habitable, that's why we were writing this paper.
And so this three has done an amazing work, and I assume the next question is how we did it.And that's, of course, I will give that to the lead author, Abby, uh, to tell us how she, Gilles, and Lucas actually did it.
Well, we just above 6,000 known worlds that circle around other stars, and among those are, as you said, 45, so more than, more than 40 planets that could potentially could be like ours.
And what we get from that is one out of five stars has a planet that could potentially be like ours, and that gets us to billions of possibility.
So Abby and Gilles and Lucas, the team that wrote this paper, identified these amazing planets that are within the limits of the habitable zone and small enough to be rocks like ours.
But for me, an extra excitement are these planets on the edge because a planet on the edge teaches you where habitability ends.
And I think that, to me, as a scientist, of course, I wanna find life, not even a question.
But being able to probe our understanding of how much light is too much, so you evaporate all your ocean, or how long you can keep a planet habitable, that's why we were writing this paper.
And so this three has done an amazing work, and I assume the next question is how we did it.And that's, of course, I will give that to the lead author, Abby, uh, to tell us how she, Gilles, and Lucas actually did it.
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