Scientists now estimate that one in five sunlike stars have Earthlike planets in the habitable zone.


Please consider donating to Behind the Black, by giving either a one-time contribution or a regular subscription, as outlined in the tip jar to the right. Your support will allow me to continue covering science and culture as I have for the past twenty years, independent and free from any outside influence.

Scientists now estimate that one in five sunlike stars have Earthlike planets in the habitable zone.

This conclusion is entirely statistically based, and should be treated with some skepticism. Still, it seems reasonable, and I think it is likely to be a close approximation of the truth, when we finally begin to gather some real data.

2 comments

  • mpthompson

    1 in 5? I would take 1 in 100. That would still mean 10s of millions in our galaxy alone.

  • Pzatchok

    The real question is how many have molten iron cores like Earth.

    Without that they have no way of creating a magnetic shield around the planet that protects it.

    There is a higher chance of the planet having an atmosphere than a magnetic core but it needs both for higher forms of life to live there.

Leave a Reply

Your email address will not be published. Required fields are marked *