StarDate

Moon and Venus


Listen Later

Venus is a world you wouldn’t want to visit. Surface temperatures are hot enough to melt lead. The atmospheric pressure is equal to being almost two-thirds of a mile deep in Earth’s oceans. And the atmosphere is made almost entirely of carbon dioxide. Paradise it’s not.

Research over the last few decades, though, suggests that Venus could have been much more pleasant when it was young — perhaps pleasant enough for life. A study reported this fall, for example, suggests that temperatures could have remained comfortable for two billion years or longer.

The study built on observations by orbiting spacecraft. The probes found that Venus once had a lot of water on its surface. The study simulated conditions with different amounts of water — from damp soil to a global ocean. It also considered the amount of energy Venus received from the Sun, and other factors.

The conclusion was that Venus could have maintained surface temperatures of about 70 to 110 degrees Fahrenheit. That’s much warmer than modern-day Earth, but fairly comfortable for life. And that environment could have been maintained until less than a billion years ago, when molten rock began to repave the surface. So if life ever appeared on Venus, it could have had a comfortable home for a long time.

Venus is climbing higher into the evening sky. It’s the brilliant “evening star.” It’s just above the crescent Moon tonight, and a bit farther to the lower right of the Moon tomorrow night.

 

Script by Damond Benningfield

...more
View all episodesView all episodes
Download on the App Store

StarDateBy Billy Henry

  • 4.6
  • 4.6
  • 4.6
  • 4.6
  • 4.6

4.6

251 ratings


More shows like StarDate

View all
Science Friday by Science Friday and WNYC Studios

Science Friday

6,133 Listeners

BirdNote Daily by BirdNote

BirdNote Daily

1,190 Listeners

Planetary Radio: Space Exploration, Astronomy and Science by The Planetary Society

Planetary Radio: Space Exploration, Astronomy and Science

1,344 Listeners

Radiolab by WNYC Studios

Radiolab

43,967 Listeners

Astronomy Cast by Fraser Cain and Dr. Pamela Gay

Astronomy Cast

2,866 Listeners

The 365 Days of Astronomy by 365DaysOfAstronomy.org

The 365 Days of Astronomy

336 Listeners

Universe Today Podcast by Fraser Cain

Universe Today Podcast

544 Listeners

Ask a Spaceman! by Paul M. Sutter

Ask a Spaceman!

804 Listeners

Space Nuts: Astronomy Insights & Cosmic Discoveries by Professor Fred Watson and Andrew Dunkley

Space Nuts: Astronomy Insights & Cosmic Discoveries

221 Listeners

SpaceTime: Your Guide to Space & Astronomy by Stuart Gary

SpaceTime: Your Guide to Space & Astronomy

320 Listeners

Short Wave by NPR

Short Wave

6,259 Listeners

The Supermassive Podcast by The Royal Astronomical Society

The Supermassive Podcast

287 Listeners

NASA's Curious Universe by National Aeronautics and Space Administration (NASA)

NASA's Curious Universe

851 Listeners

Why This Universe? by Dan Hooper, Shalma Wegsman

Why This Universe?

363 Listeners

Crash Course Pods: The Universe by Crash Course Pods, Complexly

Crash Course Pods: The Universe

505 Listeners