Astronomy Picture of the Day ·

Supernova Remnant Cassiopeia A

The Astronomy Picture of the Day for January 17, 2025 is “Supernova Remnant Cassiopeia A,” an image. It is credited to Image Credit: NASA , ESA , CSA , STScI ; D. Milisavljevic (Purdue University), T. Temim (Princeton University), I. De Looze (University of Gent). The original explanation runs about 164 words.

Supernova Remnant Cassiopeia A
Credit: Image Credit: NASA , ESA , CSA , STScI ; D. Milisavljevic (Purdue University), T. Temim (Princeton University), I. De Looze (University of Gent) Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Massive stars in our Milky Way Galaxy live spectacular lives. Collapsing from vast cosmic clouds, their nuclear furnaces ignite and create heavy elements in their cores.”

— APOD editors, January 17, 2025

Read the full explanation on science.nasa.gov

At a glance

Date
January 17, 2025
Type
Image
Credit
Credit: Image Credit: NASA , ESA , CSA , STScI ; D. Milisavljevic (Purdue University), T. Temim (Princeton University), I. De Looze (University of Gent)
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 164 words

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Topics in this entry

The Milky WayGalaxiesSupernovaeJames Webb Space Telescope

Topics are matched from words in the title and explanation.

On this day: January 17 in other years

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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.