StarDate

Evening Mercury


Listen Later

If you ever visit the planet Mercury, take along your old eclipse glasses. They’re not for looking at the Sun – you might need something even darker for that. Instead, you might want them just to see your way across the planet itself. Mercury is so close to the Sun that sunlight is more than 10 times more intense than on Earth.

Mercury is the closest planet to the Sun – an average of about 40 percent of Earth’s distance. But Mercury’s orbit is the most lopsided of any of the Sun’s major planets. So when Mercury is closest to the Sun, sunlight is almost two-and-a-half times as intense as when the planet is farthest.

All of that solar energy makes Mercury the second-hottest planet – only Venus is hotter. At the equator, temperatures hit about 800 degrees Fahrenheit.

But that doesn’t mean you couldn’t beat the heat. Mercury doesn’t have an atmosphere to circulate heat around the planet. So nighttime temperatures drop to almost 300 below zero. And the bottoms of some craters at the poles never see the Sun at all. They stay cold enough to preserve big deposits of ice – perfect places to beat the heat on a scorching planet.

Mercury is just peeking into view in the evening twilight. It looks like a fairly bright star, quite low in the west as night falls. The view is better from southern locations. So while you might not see it at all from Minneapolis, you shouldn’t have any trouble from San Antonio or Miami.

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

247 ratings


More shows like StarDate

View all
Science Friday by Science Friday and WNYC Studios

Science Friday

6,054 Listeners

Big Picture Science by Big Picture Science

Big Picture Science

939 Listeners

BirdNote Daily by BirdNote

BirdNote Daily

1,187 Listeners

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

Planetary Radio: Space Exploration, Astronomy and Science

1,337 Listeners

Science Magazine Podcast by Science Magazine

Science Magazine Podcast

807 Listeners

Radiolab by WNYC Studios

Radiolab

43,925 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

337 Listeners

StarTalk Radio by Neil deGrasse Tyson

StarTalk Radio

14,108 Listeners

Universe Today Podcast by Fraser Cain

Universe Today Podcast

538 Listeners

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

Space Nuts: Astronomy Insights & Cosmic Discoveries

222 Listeners

SpaceTime: Your Guide to Space & Astronomy by Stuart Gary

SpaceTime: Your Guide to Space & Astronomy

317 Listeners

Garrison Keillor's Podcast by Prairie Home Productions

Garrison Keillor's Podcast

1,127 Listeners

This Week in Space (Audio) by TWiT

This Week in Space (Audio)

136 Listeners

The LIUniverse with Dr. Charles Liu by theliuniverse

The LIUniverse with Dr. Charles Liu

49 Listeners