Skip to content
Vatican Observatory
  • About
    • Overview
    • Team
    • FAQ
  • Telescopes
    • Overview
    • Telescope Images
  • Tours
    • Castel Gandolfo
    • U.S.
  • Latest
    • Overview
    • Resources
    • Press
    • Audio
    • Video
    • Research
    • Authors
      • FAQs
    • Newsletter
    • Tucson Meteor Cameras
  • Podcast
  • Education
    • Overview
    • Resource Center
    • Image Gallery
    • Summer School
    • Books
    • Software
    • Additional Resources
    • ACME
  • Shop
  • Calendar
    • View our Event Calendar
  • Donate
    • Donate Now
    • Smart Ways to Give
    • Sacred Space Astronomy
      • View Content
    • Bequests / Trusts
    • The Foundation
      • Newsletters
      • Annual Reports
  • Press
    • VO in the News
    • Press Kit
  • Specola Vaticana
  • Contact
    • Contact
  • About
    • Overview
    • Team
    • FAQ
  • Telescopes
    • Overview
    • Telescope Images
  • Tours
    • Castel Gandolfo
    • U.S.
  • Latest
    • Overview
    • Resources
    • Press
    • Audio
    • Video
    • Research
    • Authors
      • FAQs
    • Newsletter
    • Tucson Meteor Cameras
  • Podcast
  • Education
    • Overview
    • Resource Center
    • Image Gallery
    • Summer School
    • Books
    • Software
    • Additional Resources
    • ACME
  • Shop
  • Calendar
    • View our Event Calendar
  • Donate
    • Donate Now
    • Smart Ways to Give
    • Sacred Space Astronomy
      • View Content
    • Bequests / Trusts
    • The Foundation
      • Newsletters
      • Annual Reports
  • Press
    • VO in the News
    • Press Kit
  • Specola Vaticana
  • Contact
    • Contact

The Venus Smiley Emoji

By Dr. Brenda Frye  |  17 Jan 2017

Share:
  • Share on Facebook
  • Share on Twitter
  • Share on LinkedIn
  • Share via Email

Images from the Japanese satellite Akatsuki show a spectacular arc-shaped cloud feature on Venus reminiscent of a giant (6000-mile long) sideways smiley face. Interestingly, this “smiley emoji” feature was stable for a full four days, so what was it?

Let us start by reviewing what we know about Venus’ atmosphere. The inner atmosphere extends for about 12 miles above the surface and is extremely thick. If you were to try to walk through it, assuming you had a sturdy astronaut suit capable of sustaining acid rain, then you would face an atmospheric density equivalent to about one-sixth that of water. On the surface the winds would be fair, clocking in at 2-3 miles per hour. The winds would then rise up to a hurricane levels of about 200 miles per hour or even faster at higher altitudes. The winds move so fast that they typically circumnavigate the planet once every 4 days (compared to the more sluggish rotation period of Venus of 243 days). All this sets the stage for some very interesting meteorology on Venus.

It turns out that the smiley face feature that was seen informs us of significant geological features on the Venetian surface which disturb the atmospheric patterns above it. The effect that caused the gigantic smiley face is called a “gravity wave.” Note this not to be mistaken for a “gravitational wave” which is a fundamental ringing of the fabric of spacetime.

The gravity wave is more mundane effect that takes place when the surface winds hit in this case the massive Venetian mountain range Aphrodite Terra just below the “emoji” feature. As a result the winds are driven straight upward until they strike the speedy horizontally-driven winds. The combination creates a relatively stable feature that is the gravity wave.

This discovery, written up in this week’s Science section of the New York Times, helps us to see indirectly the features on the surface of our “twin” planet.

Share:
  • Share on Facebook
  • Share on Twitter
  • Share on LinkedIn
  • Share via Email

Sacred Space Astronomy

The Vatican Observatory’s official digital community and online magazine.

Become a Member

Recent Posts

How to Pray with the Stars with Br. Guy Consolmagno, SJ – AMDG Podcast

By Robert Trembley  |  7 May 2025  |  Sacred Space Astronomy

Vatican astronomer visits Mount St Mary’s College

Independent Catholic News  |  7 May 2025  |  Press

From the Vatican Observatory Faith and Science Pages — What God “Whispers” through Radio Telescopes

By Faith and Science  |  7 May 2025  |  Sacred Space Astronomy

Science and Painful Truth

By Mr. Christopher Graney  |  3 May 2025  |  Sacred Space Astronomy

Archives

      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • October
      • September
      • August
      • July
      • June
      • May
      • April
      • March
      • February
      • January
      • December
      • November
      • August
      • June
      • March
      • January
      • November
      • October
      • December
      • November
      • April
      • May
      • January
      • December
      • September
      • May
      • March
      • December
      • November
      • February

More Posts by
Dr. Brenda Frye

A Gift to Us?

By Dr. Brenda Frye  |  22 Aug 2020

Getting to Know a Neutron Star: How Heavy Can They Be?

By Dr. Brenda Frye  |  9 Jul 2020

The Flying Cell Phone to Alpha Centauri: Part Two

By Dr. Brenda Frye  |  21 Jun 2020

The Flying Cell Phone to Alpha Centauri: Part One

By Dr. Brenda Frye  |  28 May 2020

No Wine Before Its Time

By Dr. Brenda Frye  |  3 Jul 2018

Counting Exercise

By Dr. Brenda Frye  |  26 Jun 2018

View More

Newsletter

Upcoming astronomical events, scientific breakthroughs, philosophical reflections… just a few reasons to subscribe to our newsletter!

Vatican Observatory
  • About
  • Telescopes
  • Tours
  • Latest
  • Podcast
  • Education
  • Shop
  • Calendar
  • Donate
  • Press
  • Specola Vaticana
  • Contact
Privacy Policy  |   Cookie Policy  |   Disclosure Statement  |   This website is supported by the Vatican Observatory Foundation

Podcast:

  • Apple Podcasts Listen onApple Podcasts
  • Spotify Listen onSpotify
  • Google Podcasts Listen onGoogle Podcasts
  • Stitcher Listen onStitcher
  • Amazon Alexa Listen onAmazon Alexa
  • TuneIn Listen onTuneIn
Made by Longbeard