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#SciComm

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Public
SETI Institute

IN-PERSON EVENT

On Wednesday, May 28, 2025, at 7 pm (PDT), Dr. Oliver White (SETI Institute) will give a free, illustrated, non-technical lecture entitled:

"Science at the Edge of the Solar System: Uncovering the Secrets of the Pluto System and Arrokoth"

in the Smithwick Theater at Foothill College, in Los Altos (see directions below)

The talk is part of the Silicon Valley Astronomy Lecture Series, now in its 25th year.

Learn more: seti.org/event/science-edge-so

Text: Silicon Valley Astronomy Lecture Series, Wednesday, May 28, 2025 at 7 pm (PDT). Science at the Edge of the Solar System: Uncovering the Secrets of the Pluto System and Arrokoth with Dr. Oliver White. Inset pictures: Oliver White and Pluto.
#science#scicomm
Public
SETI Institute

#PPOD: This sequence shows the irradiated protoplanetary disk (proplyd) 177-341 W in the Orion Nebula, captured in unprecedented detail by the Multi Unit Spectroscopic Explorer (MUSE) on ESO’s Very Large Telescope. Each panel isolates light from specific elements—hydrogen, carbon, and nitrogen—unravelling the physical and chemical conditions in which planets in high-UV environments form. Credit: Mari L. Aru et al. (ESO)

Four panels. Top left: Ionization front with a bright crescent of gas and a faint tail. 400 au scale. Bottom left: Brighter version of the first image, showing detail in the tail. Top right: The planetary disk as a bright blob normally hidden by the ionization front. Bottom right: Combined image with the disk n in red, ionization front in green, and tail in blue.
Four panels. Top left: Ionization front with a bright crescent of gas and a faint tail. 400 au scale. Hydrogen-alpha. Top right: Brighter version of the first image, showing detail in the tail. [SII] 6731 angstrom. Bottom left: Image processed at 8727 angstrom, which shows the planetary disk as a bright blob normally hidden by the ionization front. [CI] Bottom right: Combined image with the carbon version in red, H-alpha in green, and tail in blue.
#space#science#scicomm
Public
SETI Institute

#PPOD: Vera C. Rubin Observatory basks in the glow of this vibrant sunset from April 2025. From atop its perch on Cerro Pachón in Chile, Rubin will repeatedly scan the entire southern hemisphere sky for a decade, generating the greatest cosmic movie of the Universe ever made. Credit: RubinObs/NOIRLab/SLAC/DOE/NSF/AURA/W. O'Mullane

A sunset scene with Rubin Observatory. On the left is the boot-shaped observatory atop its Chilean mountain peak. The wavy mountains in background are increasingly lighter hues of purple as the air scatters light, and the orange hue of sunset fills the clear sky above. The bright yellow orb of the setting sun hangs above the mountains at the right.
#space#science#scicomm
Public
Tanguy Fardet

Let's talk about whales! 🐳

I usually speak mainly about the potential role of human urine and feces as fertilizer for agriculture because humans are the only species to actively mishandle excreta.

But obviously, the excreta of various animals also play important roles in natural cycles ♻️

Many people might know that seabirds compensate some of the nutrient loss to the sea since they hunt fish at sea but excrete on land
But of course, the bigger the animal, the larger the amount of nutrients they can transport.
A recent study looks at whales and the role they play moving nutrients around, as they feed in a region, then migrate and pee in another!
nature.com/articles/s41467-025

In fact they contribute more to nutrient transport than birds and natural phenomena and could be a dominant factor in some marine biogeochemical cycles, thus regulating local carbon cycle and biodiversity. In the past, before we hunted them down, whale pee might have shaped entire ecosystems...

NatureMigrating baleen whales transport high-latitude nutrients to tropical and subtropical ecosystems - Nature CommunicationsBaleen whales migrate from high latitude feeding grounds to subtropical reproductive winter grounds, translocating limiting nutrients across ecosystems. This study estimates the latitudinal movement of nutrients from carcasses, placentas and urea for four species of baleen whales that exhibit annual migrations.
#nitrogen#pee#whale
Public
SETI Institute

#PPOD: Jupiter’s south pole, as seen by NASA’s Juno spacecraft from an altitude of 52,000 kilometers. The oval features are cyclones, up to 1,000 kilometers in diameter. Multiple images taken with the JunoCam instrument on three separate orbits were combined to show all areas in daylight, enhanced color, and stereographic projection. Credit: NASA/JPL-Caltech/SwRI/MSSS/Betsy Asher Hall/Gervasio Robles

A detailed view looking up at Jupiter's south pole, showing swirling blue storms at the bottom and leading into browner and lighter bands at the outer edges.
#space#science#scicomm
Public
Bob Nicholls Art

My 25 years of palaeoart chronology...

Zooms from my 2023 illustration of some Morrison Formation sauropods, from DINOSAUR BEHAVIOUR, by Prof Benton (Princeton Uni Press). Features are #Camarasaurus, #Diplodocus, 2 #Brachiosaurus, 2 #Dryosaurus and a #Stegosaurus skeleton. 50% off: press.princeton.edu/books/hard

#Art#Painting#PaleoArt
Public
SETI Institute

In a new study using #JWST, scientists have discovered a hidden population of tiny asteroids in our solar system. These objects might be a more significant threat than we ever realized.

In a recent #SETILive episode, Senior Planetary Astronomer Dr. Franck Marchis and the study's lead authors, Dr. Artem Y. Burdanov and Dr. Julien de Wit, discussed the role of minor asteroids and what they can reveal about potential threats to Earth.

Learn more: seti.org/tiny-asteroids-big-th

SETI InstituteTiny Asteroids, Big Threats: How JWST is Uncovering Hidden Worlds in Our Solar SystemWhen we think about asteroids that could threaten Earth, we often imagine massive, city-sized rocks hurtling through space. But what if the real danger comes from much smaller, barely detectable ones? In a new study using the James Webb Space Telescope, scientists have discovered a hidden population of tiny asteroids in our solar system. These objects might be a more significant threat than we ever realized.
#science#scicomm
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