space
This may be the strangest planet yet discovered. It seems to be a Pluto-size world circling the remains of three dead stars: two white dwarfs & a pulsar, as massive as the Sun but no bigger than Brooklyn.
If confirmed, it would also be the smallest exoplanet known.
https://astrobiology.com/2025/01/have-we-discovered-the-smallest-extra-solar-planet.html #space #science #astronomy #nature
A reminder that broadband-from-space isn't about bridging the global digital divide or serving poor people. It's just another for-profit enterprise that seeks to exploit a public commons for private gain.
"#Starlink has refused to comply with the country’s BEE (Black Economic Empowerment) – 30 per cent ownership to local historically disadvantaged people."
https://technext24.com/2025/01/28/starlink-south-africa-waive-bee-policy/
Vera Rubin Was a Pioneering Female Astronomer. Her Federal Bio Now Doesn’t Mention Efforts to Diversify Science.
—
The edits to the webpage offer a glimpse into how far the Trump administration will go in refusing to acknowledge today’s inequalities as it purges federal initiatives promoting diversity, equity and inclusion.
This is what it looks like when a planet dies.
K2-22b orbits so close to its star that its outer layers are vaporizing, meaning that we can directly study the insides of a world 787 light years away.
(JWST data, left; artist's interpretation, right)
https://eos.org/articles/scientists-finally-get-a-good-look-at-a-disintegrating-exoplanet #space #science #nature
You've probably heard that "we are stardust," but this graphic breaks it down further & tells you what kind of stars your dust came from--and which elements didn't come from stars at all.
Meanwhile, far from Earth...
The space between stars is full of gas and dust that is normally dark & invisible to us. But a flash of light from a 350-year-old supernova has lit up the interstellar medium -- revealing it in all its strange, swirling glory.
https://webbtelescope.org/contents/news-releases/2025/news-2025-102 #space #science #nature
A pair of massive, dying stars are casting off shells of dust that are expanding outward at 2,600 kilometers a second -- fast enough that JWST can clearly see the shells expanding in images taken just 14 months apart.
https://webbtelescope.org/contents/news-releases/2025/news-2025-103 #space #science #nature #nasa
Blue Ghost is on the Moon! Images are coming in now from what appears to be the first fully successful commercial lunar lander. Just look at that shadow.
Over the next 2 weeks, Firefly's Blue Ghost will drill, study lunar dust, and observe an eclipse of the Sun...by the Earth.
https://fireflyspace.com/news/firefly-aerospace-becomes-first-commercial-company-to-successfully-land-on-the-moon/ #space #science #tech
#Blender #Blender3D #scifiart #3D #3DArt #space #cats #Art #SciFi #Space #Illustration #DigitalArt
"Astronomers noted that over 120 Starlink satellites re-entered Earth's atmosphere in January alone. ... While the re-entries produce visually stunning fireballs, they also raise concerns about atmospheric pollution."
#Space #SpaceEnvironment #SpaceEnvironmentalism #SpaceX #Starlink #Atmosphere #Reentry #Pollution #Environment
PRESS RELEASE: A research team led by Dr. Sofia Sheikh of the SETI Institute, in collaboration with the Characterizing Atmospheric Technosignatures project and the Penn State Extraterrestrial Intelligence Center, set out to answer a simple question: If an extraterrestrial civilization existed with technology similar to ours, would they be able to detect Earth and evidence of humanity? If so, what signals would they detect, and from how far away? https://youtu.be/Pdg2x3NP2ds
On top of everything else, there's an asteroid with a small but nonzero chance of hitting Earth on December 22, 2032.
Here's a smart summary of the estimated risk, how we'll get better info, and what we could do if the danger starts to look significant.
https://www.supercluster.com/editorial/an-asteroid-stands-a-chance-at-impacting-earth-are-we-prepared #science #nature #space #disaster
Cat's Eye Nebula NGC 6543 as seen by ESA Euclid Space Telescope
Full size 3K & full info: https://flic.kr/p/2qTiGsj
Credit: ESA/Euclid/EuclidConsortium/NASA/NAOJ/AndreaLuck CC BY
Latest data release available on: https//eas.esac.esa.int/sas
Mission: ESA Euclid
Instruments: VIS and NIS
Product Type: MER Mosaic
Release Q1 R1
Filters: HSC G (Subaru Telescope), VIS, NIR H, NIR J, NIR Y
I loved working on this article:
The technology in your cell phone has a hidden connection to the stars. Modern computer chips are made using ultraviolet light from vaporized balls of tin--and those balls closely mirror the physics of supernova explosions!
https://spectrum.ieee.org/euv-light-source #science #tech #space
Hey, a graphic novel I worked on is out! Check out Space Chasers by astronaut Leland Melvin, Joe Caramagna & Alison Acton! It's the first in a series of middle grade books about a team of brilliant kids who become astronauts + have an amazing adventure. I loved working on this series so much. 🚀💫
Link: https://bookshop.org/p/books/the-steam-team-book-1-leland-melvin/21278348
Here it is: The first clear image of an eclipse of the Sun by the Earth, taken from the surface of the Moon.
This is what last night's lunar eclipse looked like from the Blue Ghost lander's perspective on the Moon. Amazing!
https://www.flickr.com/photos/fireflyspace/54386246629/in/dateposted/ #space #science #art #tech
Where Your Elements Came From
Credits: Cmglee, CC BY-SA 3.0, GFDL, Wikimedia Commons
#nature #space #astrophotography
The Fourier Transform is a mathematical operation that transforms a function of time (or space) into a function of frequency. It decomposes a complex signal into its constituent sinusoidal components, each with a specific frequency, amplitude, and phase. This is particularly useful in many fields, such as signal processing, physics, and engineering, because it allows for analysing the frequency characteristics of signals. The Fourier Transform provides a bridge between the time and frequency domains, enabling the analysis and manipulation of signals in more intuitive and computationally efficient ways. The result of applying a Fourier Transform is often represented as a spectrum, showing how much of each frequency is present in the original signal.
\[\Large\boxed{\boxed{\widehat{f}(\xi) = \int_{-\infty}^{\infty} f(x)\ e^{-i 2\pi \xi x}\,\mathrm dx, \quad \forall\xi \in \mathbb{R}.}}\]
Inverse Fourier Transform:
\[\Large\boxed{\boxed{ f(x) = \int_{-\infty}^{\infty} \widehat f(\xi)\ e^{i 2 \pi \xi x}\,\mathrm d\xi,\quad \forall x \in \mathbb R.}}\]
The equation allows us to listen to mp3s today. Digital Music Couldn’t Exist Without the Fourier Transform: http://bit.ly/22kbNfi
#Fourier #FourierTransform #Transform #Time #Frequency #Space #TimeDomain #FrequencyDomain #Wavenumber #WavenumberDomain #Function #Math #Maths #JosephFourier #Signal #Signals #FT #IFT #DFT #FFT #Physics #SignalProcessing #Engineering #Analysis #Computing #Computation #Operation #ComplexSignal #Sinusoidal #Amplitude #Phase #Spectra #Spectrum #Pustam #Raut #PustamRaut #EGR #Mathstodon #Mastodon #GeoFlow #SpectralMethod
I look at a lot of space images, but this one made my eyes bug out like a cartoon character.
What you see here isn't a spiral galaxy, exactly. It's a spiral galaxy whose image was bent into a circle by the gravity of an elliptical galaxy visible at the center.
Warped space, right before your eyes!
https://esawebb.org/images/potm2503a/ #space #science #art #nasa #esa
Early bird tickets for The #DrakeAwards2025 are available!
You’re cordially invited to join the SETI Institute on May 20, 2025, for an unforgettable evening celebrating scientific discovery, innovation, and the search for life beyond Earth. Connect with pioneering researchers in #SETI, #astrobiology, and #space #science, enjoy a gala dinner and awards ceremony, and engage with the brightest minds in the field.
Act now! The Early Bird sale ends in five days!
Tickets: https://www.eventbrite.com/e/drake-awards-2025-tickets-1251126907259
#kleptocracy & #corruption on full display:
Exclusive: #SpaceX, #ULA to clinch multibillion-dollar #Pentagon launch contract
#ElonMusk's SpaceX & United Launch Alliance are expected to each win a #US #SpaceForce rocket launch contract on Friday worth billions of dollars over the next several years to send some of the Pentagon's most sensitive #satellites into #space, acc/to 2 people familiar w/the procurement decision.
#law #Trump #broligarchy #plutocracy #USpol
https://www.reuters.com/business/aerospace-defense/spacex-ula-expected-clinch-multibillion-dollar-contract-key-pentagon-launch-2025-04-04/