coreyspowell

coreyspowell, 1 month ago to space

The astronauts aboard the ISS were amazed by the April 8 solar eclipse, just like the rest of us, and went crazy snapping photos from orbit.

They got some amazing views of the Moon's shadow sweeping across southern Canada & Maine, seen from 420 km (261 miles) above: https://www.flickr.com/photos/nasa2explore/with/53645140833 #space #eclipse #space #astronomy

The Moon's shadow, or umbra, is pictured covering portions of the Canadian provinces of Quebec and New Brunswick and the American state of Maine in this photograph from the International Space Station as it soared into the solar eclipse from 261 miles above.
The Moon's shadow, or umbra, is pictured covering portions of the Canadian provinces of Quebec and New Brunswick and the American state of Maine in this photograph from the International Space Station as it soared into the solar eclipse from 261 miles above.

coreyspowell, 7 months ago to science

The winners of this year's "Small World" micro-photo competition are out. I'm especially intrigued by this astonishing shot: a struck match, caught at the exact moment of ignition.
(It ended up in second place, go figure.) #science #photography
https://www.nikonsmallworld.com/galleries/2023-photomicrography-competition

coreyspowell, 7 months ago to science

Shocking story about mRNA pioneer/Nobel winner Katalin Karikó, whose early advisor at Temple tried to have her deported & derailed her career because she dared to look for a better-paying job.

Later, UPenn demoted her, then forced her out, because her research wasn't bringing in enough funding. #NobelPrize #science [HT Paul Novosad]

coreyspowell, 10 months ago to space

I've seen a lot of pictures of Saturn, but there's something really magical about this new raw image from JWST.
Pixel noise + filter selection make the planet vanish -- just a set of rings floating in space.
#space #science #NASA

coreyspowell, 11 months ago to nature

24 hours of Earth's rotation, with the camera locked to the sky instead of the ground. We're all hanging out on this spinning rock.
Brilliant video by Bartosz Wojczyński. https://artuniverse.eu/gallery/190705-rotation24h #nature #wonder #earth

24 hours of Earth's rotation. Technical information: Date & time: 2019 July 4th/5th 13:24 ~ 13:20 CAT Location: Tivoli Astro-Farm, Namibia Optics : Irix 15mm f/2.4 Firefly Camera: Nikon D810

coreyspowell, 5 months ago to science

The 300-square-mile Telescope Array experiment in Utah detected a cosmic ray with an energy of 240 quintillion electron volts. That's as much energy as a thrown brick, jammed into a single subatomic particle.

Nobody knows how it formed.

https://attheu.utah.edu/facultystaff/cosmic-ray-2023/
#science #physics #nature

On May 27, 2021, the Telescope Array experiment detected the second-highest extreme-energy cosmic ray. At 2.4 x 1020eV, the energy of this single subatomic particle is equivalent to dropping a brick on your toe from waist height. Led by the University of Utah (the U) and the University of Tokyo, the Telescope Array consists of 507 surface detector stations arranged in a square grid that covers 700 km2 (~270 miles2) outside of Delta, Utah in the state’s West Desert. The event triggered 23 detectors at the north-west region of the Telescope Array, splashing across 48 km2 (18.5 mi2). Its arrival direction appeared to be from the Local Void, an empty area of space bordering the Milky Way galaxy.

coreyspowell, 1 month ago to space

Only three humans have ever witnessed an eclipse of the Sun by the Earth. It happened while the Apollo 12 crew was returning home from the Moon, on November 21, 1969.

Fortunately, the astronauts filmed the moment so you can share in the experience.

https://archive.org/details/Apollo1216mmOnboardFilm [at the 4:50 mark] #space #science #nasa #eclipse

Footage of the eclipse of the sun was taken with a 16mm motion picture camera from the Apollo 12 spacecraft during its trans-Earth journey home from the moon. The fascinating view was created when the Earth moved directly between the sun and the Apollo 12 spacecraft. Aboard Apollo 12 were astronauts Charles Conrad Jr., commander; Richard F. Gordon Jr., command module pilot; and Alan L. Bean, lunar module pilot. While astronauts Conrad and Bean descended in the Lunar Module (LM) "Intrepid" to explore the Ocean of Storms region of the moon, astronaut Gordon remained with the Command and Service Modules (CSM) "Yankee Clipper" in lunar orbit. Source: NASA/Johnson Space Center

coreyspowell, 7 months ago to science

I love a science mystery, and this is a good one:
About once a year, a mysterious blue flash appears from a different part of the sky, then fades in a matter of days. Nobody knows what these things are. And the latest one, nicknamed "the Finch," may be the strangest one yet.
https://science.nasa.gov/missions/hubble/nasas-hubble-finds-bizarre-explosion-in-unexpected-place #science #astronomy #astrodon

coreyspowell, 1 month ago to science

Powerful eruption occurring now at Ruang volcano in Indonesia's North Sulawesi Province. Hundreds evacuated so far.

Photos show the lava flow, huge ash cloud, and volcanic lightning.

https://www.reuters.com/world/asia-pacific/hundreds-evacuated-after-indonesias-ruang-volcano-erupts-2024-04-17/ #volcano #science #nature

At least 800 people in Indonesia's North Sulawesi province have been evacuated after multiple eruptions of the area's Ruang volcano, which for days has spewed lava and ash clouds into the sky, the country's volcanology agency said on Wednesday.

coreyspowell, 7 months ago to fediverse

The difference in engagement here vs the ex-bird site is staggering.

I did an experiment. My last post was shared 12 times over there (where I allegedly have 85k followers). A nearly identical post was shared 361 times here (where I have fewer than 6k followers). Amazing.

#fediverse #mastodon

coreyspowell, 6 months ago to space

For decades, astronomers have dreamed of setting up an observatory on the far side of the Moon. I read about it as a kid. Now it's happening!

The LuSEE-Night radio telescope is under construction, and is scheduled to land on the lunar farside in 2025. It's a pathfinder for a much bigger radio telescope that would follow. https://newscenter.lbl.gov/2023/09/26/listening-to-the-radio-on-the-far-side-of-the-moon/ #space #nasa #science

coreyspowell, 1 month ago to space

I'm so excited about this upcoming space mission.

NASA has just confirmed that the Dragonfly octocopter will launch in July, 2028. When it arrives, it will spend at least two years flying over the organic-rich sands of Titan, Saturn's largest moon.

https://dragonfly.jhuapl.edu/News-and-Resources/news/20231128.php #space #science #nasa #life #tech

The Dragonfly rotorcraft lander, shown here in an artist's rendering of the mission concept, will land on Saturn's moon Titan and then make multiple flights to explore diverse locations as it characterizes the habitability of the ocean world's environment. Image credit: NASA/Johns Hopkins APL/Steve Gribben

coreyspowell, 2 months ago to science

Scientists have to reset their superlatives. A quasar known as J0529-4351 is the most luminous single object in the known universe, emitting as much energy as 500 trillion suns.

It's powered by a supermassive black hole that swallows 300,000 Earth masses of gas every day.

https://www.eso.org/public/news/eso2402/ #science #nature #astronomy #space

coreyspowell, 2 months ago to Astronomy

Halley's Comet won't reappear until 2061, but Pons-Brooks is a similar big, long-period comet putting -- and it's putting on a show right now.

You'll need good binoculars, but oh is it pretty. Photo taken on Monday by Michael Jäger.

https://theskylive.com/12p-info
#astronomy #space #science #comet #photography

coreyspowell, 11 months ago to science

Humans have pumped so much groundwater that we have measurably shifted Earth's axis.

It's the kind of news that's not shocking and yet is totally shocking at the same time.

https://news.agu.org/press-release/weve-pumped-so-much-groundwater-that-weve-nudged-the-earths-spin #Earth #science

coreyspowell, 2 months ago to science

This is how technology changes our view of reality.

The enormous LSST camera (the eye of the Rubin Observatory) will will soon start scanning the entire visible universe every 3-4 days. It will create the grandest movies ever made, watching for anything moving, flickering , appearing, or vanishing in deep space.

https://rubinobservatory.org/about #science #space #tech #astronomy

coreyspowell, 3 months ago to science

For a little dose of perspective: Here's a partial solar eclipse on Mars! It was captured by NASA's Perseverance rover two weeks ago.

Tiny moon Deimos can't cover the whole Sun, but it does make a cool looking transit. (Event sped up 10x, processing by Simeon Schmauss.)
https://www.flickr.com/photos/semeion/53481345691/ #science #nature #space #astronomy

This sequence was from 177 Left Mastcam-Z images that were upscaled 2x using the Enhance function in Adobe Lightroom. According to the image metadata the transit was on January 20th and started at 01:32:18 UTC and lasted until 01:34:18 UTC. In local mean solar time on Mars this corresponds to 08:41:34 to 08:43:31. The full sequence lasted 137 seconds in reality and is shown at 10x speed. Credit: NASA/JPL-Caltech/ASU/Simeon Schmauß

coreyspowell, 2 months ago to science

To your eye, Betelgeuse is the bright "shoulder" star in Orion. A new simulation shows what it would look like if you could get up close: an enormous, boiling cauldron of gas.

If Betelgeuse were placed where the Sun is, Earth's orbit (blue circle) would be deep inside. That's how big it is!

https://www.mpa-garching.mpg.de/1094283/hl202403 #science #space #astronomy #nature

Simulation of Betelgeuse’s boiling surface: This animation shows a simulation of how convection dominates the surface of a Betelgeuse-like star. (MPA)

coreyspowell, 2 months ago to space

This is the surface of a comet! Dust is swirling around the surface of Comet 67/P -- captured in 2016 by ESA's Rosetta spacecraft, processing by Jacint Roger Perez.

Still one of the most remarkable scenes in space exploration.

#space #science #astronomy #ESA

INT. #ROSETTA MISSION #COMET #67P/CHURYUMOV-GERASIMENKO 01 jun 2016 Distance to Target: 13.5 km Camera: OSINAC Near_Ir+Orange+blue filt.

coreyspowell, 5 months ago to space

The laws of physics can produce beautiful natural harmony. Astronomers just found a remarkable example 100 light years away:
Six planets orbit their star in near-perfect resonance, maintaining a tight rhythm for a billion years.
https://www.esa.int/Science_Exploration/Space_Science/Cheops/ESA_s_Cheops_helps_unlock_rare_six-planet_system #space #science #astronomy

coreyspowell, 10 months ago to science

The universe "hums" with gravitational waves that lie far outside the range of human experience. Their frequency is measured in decades; their wavelength is measured in light years.
The sound of the universe is approximately 37 octaves below middle C -- if you could hear it.
https://nanograv.org/15yr/Summary #science #nanograv

coreyspowell, 1 year ago to ai

This is a really important point: From a business perspective, the goal of a Google AI is to make sure you never view primary sources on other web pages, only the chopped-and-processed information on Google's own site.
#AI #Google

https://twitter.com/jjvincent/status/1656369628711383057

coreyspowell, 5 months ago to Astronomy

There's more than one ringed planet in our solar system! This gorgeous bullseye view of Uranus and its rings was captured by #JWST.

Uranus is tipped sideways, so sometimes we see its rings aimed almost straight at us. Look closely and you can also see 14 of Uranus's moons, along with glowing galaxies in the background.

https://webbtelescope.org/contents/news-releases/2023/news-2023-150
#astronomy #space #science

This image of Uranus from NIRCam (Near-Infrared Camera) on NASA’s James Webb Space Telescope shows the planet and its rings in new clarity. The planet’s seasonal north polar cap gleams in a bright white, and Webb’s exquisite sensitivity resolves Uranus’ dim inner and outer rings, including the Zeta ring—the extremely faint and diffuse ring closest to the planet. This Webb image also shows 14 of the planet’s 27 moons: Oberon, Titania, Umbriel, Juliet, Perdita, Rosalind, Puck, Belinda, Desdemona, Cressida, Ariel, Miranda, Bianca, and Portia. Credit: NASA, ESA, CSA, STScI

coreyspowell, 1 month ago (edited 1 month ago) to space

Today's dose of cosmic beauty: Comet Pons-Brooks, photographed from southern Spain by Fritz Helmut Hemmerich.

The eerie green glow is from diatomic carbon. The ripples show the flow of the solar wind.

https://www.facebook.com/fritzhelmut.hemmerich/ #space #science #astronomy #nature

coreyspowell, 3 months ago to Astronomy

For the first time, astronomers have direct evidence of planets that survived the death of their star.

These remarkable JWST images appear to show Jupiter-like planets still clinging to burned-out white dwarf stars. Our solar system might look a lot like this in 8 billion years.

Paper: https://arxiv.org/abs/2401.13153 #astronomy #astrodon #science #space