Evan Rich

An infrared photo of a rainbow: a strange, ghostly-looking rainbow in a mostly black and white photo, with a faintly red outer edge and a cyan inner edge, and what look like a few even fainter ‘echo’ bows inside

A regular visible-light pic of a rainbow

An ultraviolet picture of a rainbow: a dark, foreboding landscape with a deep purple stripe emanating from it, and a grey stripe inside

A composite of the three preceding photos, showing that the infrared bow is ‘outside’ the visible light rainbow, and the ultraviolet bow ‘inside’

There’s more to rainbows than the human eye can see: here’s how a rainbow extends into the infrared and ultraviolet.

Photos:
1. Infrared
2. Visible (obviously)
3. Ultraviolet, and
4. A composite showing how UV is beyond the violet in a rainbow, and IR beyond the red end.

🧪 #photography

21.11.2024 10:35 — 👍 2027    🔁 657    💬 72    📌 60

Red Squirrel in deep snow covered in snowflakes

Happy squirrel appreciation day!

22.01.2024 00:55 — 👍 1    🔁 0    💬 1    📌 0

Picture of a bluejay next to a pile of peanuts with a pine tree in the background.

Happy winter solstice!

21.12.2023 14:36 — 👍 0    🔁 0    💬 0    📌 0

That’s a good idea!

05.12.2023 19:09 — 👍 0    🔁 0    💬 0    📌 0

I’m glad I’m not the only one getting these emails…

05.12.2023 18:21 — 👍 1    🔁 0    💬 1    📌 0

List of names for snowplows including Darth Blader

Snowplow naming contests is defiantly the energy I need right now. Darth Blader might be my favorite

28.11.2023 01:36 — 👍 2    🔁 2    💬 0    📌 0

Apply to Write for Astrobites 2023! Love astronomy, astrophysics, and science communication? Come join the Astrobites team! Applications due November 17th.

Apply to write for us! Are you enthusiastic about science communication? Interested in developing your writing skills? Excited about joining a collaboration of over 100 astronomy grad students from around the world? We look forward to working with you ☺️ 🔭

astrobites.org/2023/10/21/a...

22.10.2023 15:01 — 👍 31    🔁 39    💬 0    📌 8

Like phases of the moon…

16.11.2023 19:43 — 👍 1    🔁 0    💬 0    📌 0

Anyone else find picking textbooks for a course to be stressful? Publishers knocking at your door offering “the best thing since slice bread”, me trying to maximize learning while minimizing cost, and lots of strong opinions on the best books. Not my favorite part of the job. 🎢

10.11.2023 15:01 — 👍 0    🔁 0    💬 0    📌 0

I’ve liked it here so far, but we will see…

21.10.2023 13:04 — 👍 1    🔁 0    💬 0    📌 0

If I know anything about you, it’s your love for capitalism!

03.10.2023 02:36 — 👍 1    🔁 0    💬 0    📌 0

This is serendipitous as I was just thinking about how to install MESA on the lab computers! fantastic!

29.09.2023 21:34 — 👍 1    🔁 0    💬 0    📌 0

Thanks for the suggestion, I’m gonna give this one a try!

29.09.2023 18:58 — 👍 1    🔁 0    💬 0    📌 0

We have new telescope smartphone mounts for our intro astronomy courses. One lab I would like them to do is measure the plate scale of their cellphone when mounted to the telescope. Anyone know of a good imaging app that could measure the distance between two stars in pixels on a cellphone? 🔭🎢

29.09.2023 14:36 — 👍 4    🔁 0    💬 1    📌 0

Hello world! Hope this is better than the other place.

16.09.2023 18:02 — 👍 8    🔁 0    💬 0    📌 0