Mark Fioravanti, Ph.D.

Darwi is a Mini Plushie Lop bunny, white with black Vienna markings.

Darwi has been added to the fluffle! She's got ears that will help her fly when her springs come in! #rabbits #bunnies #booplesnoot

Honors Classical Mechanics: From Special Relativity to Newtonian Mechanics by Henry J. Frisch

Honors Classical Mechanics by Henry J. Frisch is a modern introduction to classical mechanics that allows students to develop confidence, a broad mathematical tool kit, & a correct physical intuition while in a collaborative & supportive environment.

Out now: press.princeton.edu/books/paperb...

The Pleiades, a.k.a. The Seven Sisters or M45. Pleiades is known for its bright, blue stars and the surrounding reflection nebulae. Recent work has shown that it is a part of a much larger stellar complex that spans over 2,000 light years. Exposure 6 hours, 11/19/25 Equipment: Telescope: SVBony SV555 Camera: ZWO ASI533 mc pro Mount: ZWO AM3 FIlters: SVbony UV/IR cut filter Processed in SIRIL and Photoshop Skies: Bortle 3-4

The Pleiades, a.k.a. The Seven Sisters or M45. Pleiades is known for its bright, blue stars and the surrounding reflection nebulae. Recent work has shown that it is a part of a much larger stellar complex that spans over 2,000 light years.

Exposure 6 hours, 11/19/25

#astronomy #astrophotography

Painting of 2 rabbits trick or treating. One dressed as ghost. One dressed as monster. Bags of candy in paws in front of them.

Rabbit! Rabbit!

We need an HHS Secretary who respects science and does not make policy based on conspiracy theories.

Vaccines are safe and effective.

Kennedy is threatening the health of our kids and all Americans.

He must resign.

Incidentally, the Laundry Files TTRPG 2nd Edition is up for pre-orders from Cubicle 7 right now:

https://cubicle7games.com/the-laundry-roleplaying-game

And is on DriveThruRPG already:

https://www.drivethrurpg.com/en/publisher/54/cubicle-7-entertainment-ltd?keyword=laundry%20files&src=browse54

Government | Harvard University Browse the latest Government courses from Harvard University.

Those free US Government classes that @harvard.edu has been talking about are available online pll.harvard.edu/subject/gove... (as well as others)

Evidence for a polar circumbinary exoplanet orbiting a pair of eclipsing brown dwarfs Using the dynamics of the three-body problem, a planet orbiting at an angle close to 90° from a binary orbit is inferred.

doi.org/10.1126/scia...

The iron in your blood likely was involved in the death of a star.

The problem with universal definitions is that they intend to intentionally obfuscate nuance by prioritizing a singular truth. They are anti-scientific.

Don't forget to help itch the side they can't get now!

Waffles, a light brown Holland Lop, drinking from a ceramic water bowl. The water bowl has a picture of Garfield in it, which says "My Bowl"

Waffles, as a baby, just being cute. This is one of my favorite pictures of him. #rabbits #bunnies #booplesnoot

Waffles, a light brown Holland Lop bunny, sleeping on his side with his eyes closed.

Nap time! #rabbits #bunnies #booplesnoot

A four panel illustration. Panel 1 shows a host star, which looks like an orange globe with flares coming out on various sides. There is a blue line with arrows forming a spiral around the star. At 2 o’clock in the outer spiral, furthest away from the star, there is a blue planet. Panel 2 shows the same star and lines, but the planet is now at 7 o’clock and closer to the star. It is a little stretched out toward the star. Panel 3 shows the same star and lines, but the planet is fully engulfed by the star, with big flares coming out where the planet and star collided. Panel 4 shows the aftermath, with a very transparent cloud of blue dust spread out from the star. A dark orange horizontal ring of material circles the host star.

The NASA/ESA/CSA James Webb Space Telescope has observed the engulfment of a planet by its star – thought to be the first observation of its kind!

Read more 👉 esawebb.org/images/plane...

🔭 🧪

Current mood …

My Muse is SCREAMING at me to sit down and write my script for an updated re-make of Doctor Strangelove.

(POTUS GOLDPANTS, in middling dementia, decides to evade the 25th amendment by barricading himself in the Oval Office and launching stealth bombers at Latveria. Etc.)

Farewell, Gaia! Spacecraft operations come to an end The European Space Agency (ESA) has powered down its Gaia spacecraft after more than a decade spent gathering data that are now being used to unravel the secrets of our home galaxy.On 27 March 2025, G...

Gaia has been powered down after more than a decade spent gathering data.

Though the spacecraft’s operations are now over and Gaia goes into a well deserved retirement, the scientific exploitation of Gaia’s data has just begun 👉 www.esa.int/Enabling_Sup...

🔭 🧪

Raising Rabbits is LIVE NOW!!https://www.kickstarter.com/projects/byodice/raising-rabbits

Playing on an Ikoria mat! Some how bunny appropriate!

Nice! Forbidden Planet was released 69 years ago today!

Waffles, a brown Holland Lop, being cute.

Waffles being cute as a baby. #rabbits #bunnies #booplesnoot

Planet Definitions xkcd.com/3063

Looks like #bunnybuttfriday is getting more common over here. @khionewi.bsky.social

One of my friends is kicking off his company and is interested in investors who support #Sustainability in the context of #AI, #Cybersecurity, #Energy, and Climate Risk Management. sustainablefuturetech.com/investors/

Waffles, a brown Holland Lop, has stuck his head in a Quaker oat container.

Waffles still loves his oats. #rabbits #bunnies #booplesnoot

The cover of the free, open-source introductory astronomy textbook by Andrew Fraknoi, David Morrison, and Sidney Wolff, which is now the most-frequently-assigned astronomy textbook in North America.

Free Astronomy Textbook: Interested in #astronomy ? A reminder that the #OpenStax free online introductory textbook is available to anyone. Used by 1.2 million students and over 100,000 independent readers so far: bit.ly/astronomytex...
#astroedu #space #science #textbooks #education #openeducation

Baby Gandalf, a White Holland Lop with Blue eyes, NOT sitting still for the camera.

Let's be honest most bunny pictures looks like this. If you see them sitting still it's you've taken a lot of pictures like this before... This is a baby Gandalf, one of our Holland Lops, he was all rainbows and sunshine.

Public education is the backbone of American democracy.

In the richest country in the history of the world, we cannot abandon our teachers and our public schools.

Your imposter syndrome should have died laughing at this point. You're doing great. You didn't author a bill to rename Greenland "Red, White, and Blueland." You can do anything.

A sea of colourful stars and galaxies appear to swim in the vast blackness of space around a hazy halo at centre stage. In the middle of the image, the fuzzy-looking bulb of light in a warm shade of yellow extends around a small bright spot, nestled within a thin light circle that appears to be drawn closely around it. As we follow the central halo’s rim outwards, its brightness dims and blends smoothly into its surroundings. Here, extended discs of shades ranging from a warm purple to golden yellow, and piercing dots of light with sharp diffraction spikes are spread evenly across the image.

Our dark Universe detective 🕵️ Euclid has discovered a stunning Einstein ring! 💍

It surrounds galaxy NGC 6505, which is acting as a gravitational lens, bending light from a distant galaxy behind it.

Why is this rare phenomenon so useful for scientists? 👉
www.esa.int/Science_Expl...

🔭🧪
#cosmology

A screenshot of the old dungeon crawler game Castle of the Winds, saying “There’s no room in your Large Pack” over and over again

There’s no room in your Large Pack