Make us your home page
Instagram

Today’s top headlines delivered to you daily.

(View our Privacy Policy)

Could 'Goldilocks' planet be just right for life?

Astronomers say they have for the first time spotted a planet beyond our own in what is sometimes called the Goldilocks zone for life: Not too hot, not too cold. Juuuust right.

Not too far from its star, not too close. So it could contain liquid water. The planet itself is neither too big nor too small for the proper surface, gravity and atmosphere.

It's just right. Just like Earth.

The new planet sits smack in the middle of what astronomers refer to as the habitable zone, unlike any of the nearly 500 other planets astronomers have found outside our solar system. And it is in our galactic neighborhood, suggesting that plenty of Earth-like planets circle other stars.

Finding a planet that could potentially support life is a major step toward answering the timeless question: Are we alone?

Scientists have jumped the gun before on proclaiming that planets outside our solar system were habitable only to have them turn out to be not quite so conducive to life. But this one is so clearly in the right zone that five outside astronomers told the Associated Press it seems to be the real thing.

Life on other planets doesn't mean E.T. Even a simple single-cell bacteria or the equivalent of shower mold would shake perceptions about the uniqueness of life on Earth.

But there are still many unanswered questions about this strange planet. It is about three times the mass of Earth, slightly larger in width and much closer to its star — 14 million miles vs. 93 million. It's so close to its version of the sun that it orbits every 37 days. And it doesn't rotate much, so one side is almost always bright, the other dark.

Temperatures can be as hot as 160 degrees or as frigid as 25 below zero, but in between — in the land of constant sunrise — it would be "shirt-sleeve weather," said co-discoverer Steven Vogt of the University of California at Santa Cruz.

It's unknown whether water actually exists on the planet and what kind of atmosphere it has. But because conditions are ideal for liquid water, and because there always seems to be life on Earth where there is water, Vogt believes "that chances for life on this planet are 100 percent."

The findings, announced by the National Science Foundation on Wednesday, are being published in Astrophysical Journal.

Could 'Goldilocks' planet be just right for life? 09/29/10 [Last modified: Wednesday, September 29, 2010 9:26pm]
Photo reprints | Article reprints

© 2017 Tampa Bay Times

    

Join the discussion: Click to view comments, add yours

Loading...
  1. Astros rout Yankees to force Game 7 of AL Championship Series

    Ml

    HOUSTON — Justin Verlander pitched seven shutout innings to outduel Luis Severino for the second time, and the Astros bats came alive in their return home as Houston routed the Yankees 7-1 Friday night and forced a decisive Game 7 in the American League Championship Series.

    The Astros’ Brian McCann, who has struggled during the ALCS, breaks a scoreless tie with an RBI double during the fifth inning off Yankees starter Luis Severino.
  2. Review: Faith Hill and Tim McGraw shower love, star power on Tampa's Amalie Arena

    Blogs

    Near the end of their potent new duet Break First, Tim McGraw stopped singing, and let Faith Hill's powerhouse voice take over.

    Faith Hill and Tim McGraw performed at Amalie Arena in Tampa on Oct. 20, 2017.
  3. Senate to take up AUMF debate as Trump defends reaction to Niger attack

    World

    WASHINGTON — The Senate Foreign Relations Committee is taking up a long-awaited debate about authorizing military force against the Islamic State as President Trump comes under unprecedented public scrutiny for his treatment of dead soldiers' families, following an ambush on troops helping to fight Islamic …

  4. In fear and vigilance, a Tampa neighborhood holds its breath

    K12

    TAMPA — There was a time, not long ago, when Wayne Capaz would go for a stroll at night and Christina Rodriguez would shop whenever she wanted. Michael Fuller would go to his night job as a line cook, not too worried about his wife at home.

    More than 50 people gathered and walked in the Southeast Seminole Heights community Friday to pay respects to the victims of three shootings. The crowd took a moment of silence at the corner of 11th Street and East New Orleans where Monica Hoffa was found dead. [JONATHAN CAPRIEL  |  Times]
  5. Fennelly: What's not to like about Lightning's start?

    Lightning Strikes

    BRANDON — No one is engraving the Stanley Cup. No one has begun stuffing the league MVP ballot box for Nikita Kucherov.

    The Lightning, with a win tonight, would match the best start in franchise history, 7-1-1 in the 2003-04 Cup season.