Astronomy Picture of the Day ·

Earth at Twilight

The Astronomy Picture of the Day for April 6, 2013 is “Earth at Twilight,” an image. It is credited to Image Credit: ISS Expedition 2 Crew , Gateway to Astronaut Photography of Earth , NASA. The original explanation runs about 121 words.

Earth at Twilight
Credit: Image Credit: ISS Expedition 2 Crew , Gateway to Astronaut Photography of Earth , NASA Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“No sudden, sharp boundary marks the passage of day into night in this gorgeous view of ocean and clouds over our fair planet Earth . Instead, the shadow line or terminator is diffuse and shows the gradual transition to darkness we experience as twilight.”

— APOD editors, April 6, 2013

Read the full explanation on science.nasa.gov

At a glance

Date
April 6, 2013
Type
Image
Credit
Credit: Image Credit: ISS Expedition 2 Crew , Gateway to Astronaut Photography of Earth , NASA
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 121 words

All of April 2013 → · 2013 by month → · Full archive since 1995 →

On this day: April 6 in other years

On Amazon

Popular picks for space fans

As an Amazon Associate I earn from qualifying purchases.

Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read astronomy and space-history books anywhere. View on Amazon → Electronics Bose QuietComfort Wireless Headphones Noise-cancelling headphones for documentaries and launch livestreams. View on Amazon →

Source

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.