Les milliardaires techbros libertariens sont vraiment la plaie de l'humanité.
Les déchets volants de Musk pourrissent les images scientifiques de Hubble 😱
It is 15 years since human hands touched NASA's Hubble Space Telescope for the last time. Michael Good (on the end of the shuttle's Remote Manipulator System) works to refurbish and upgrade NASA's Hubble Space Telescope during Servicing Mission 4. Image credit NASA Today, more than three decades after its launch in 1990, Hubble continues to send stunning images back to Earth and conduct groundbreaking science.
#OTD in 2009, the final #Hubble servicing mission launched. SM4 had an ambitious list of tasks designed to bring Hubble to the apex of its scientific capabilities and ensure it would operate for many years to come. (1/3) 🧵
An asteroid wanders through this image of galaxy UGC 12158 captured by the Hubble Space Telescope. Hubble took multiple exposures of the galaxy, causing the foreground asteroid to appear as a series of bright white dashes. The curved path is due to parallax as Hubble orbits the Earth.
I came across this delightful video this afternoon when going through some old slides and paused what I was doing to watch the whole thing.
Here is a supercut of 18 astronomy visualizations from @spacetelescope, using computer simulations and Hubble images to create 3D flythroughs of objects in space.
I just love this image - it highlights why we need all the different telescopes: each of them looks at the same object in different ways. And only when working together a complete image emerges.
Here, #Euclid's wide field is combined with #Hubble's zoom-in and #JWST sharpest IR image we ever obtained, allowing us to study how radiation interacts with interstellar matter.
📷 The Horsehead Nebula as seen by three space telescopes
Credits: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre (CEA Paris-Saclay), G. Anselmi, NASA, ESA, and the Hubble Heritage Team (AURA/STScI), ESA/Webb, CSA, K. Misselt, M. Zamani (ESA/Webb)
Millennial telescope tries to celebrate 34th birthday, but instead goes into safe mode because of gyroscope issues (relatable).
The same gyroscope that was causing issues back in November is acting up again, so Hubble has paused science operations while operators troubleshoot the issue. If needed, Hubble can operate with only one of its three remaining gyroscopes, with reduced observing efficiency.
#PPOD: In celebration of the 34th anniversary of the launch of NASA’s legendary Hubble Space Telescope, astronomers took a snapshot of the Little Dumbbell Nebula, also known as Messier 76, or M76, located 3,400 light-years away in the northern circumpolar constellation Perseus. The name 'Little Dumbbell' comes from its shape which is a two-lobed structure of colorful, mottled, glowing gases resembling a balloon that’s been pinched around a middle waist. Credit: NASA, ESA, STScI
Launched on this day way back in 1990 aboard the Shuttle Discovery, giving humanity a remarkable window on to the awe-inspiring wonders of our universe, allowing us to witness even the stellar nurseries, birthplace of the stars themselves.
Happy Birthday #Hubble! It was launched #OTD April 24, 1990 on the Space Shuttle Discovery.
This year's anniversary image is of the Little Dumbbell Nebula, or M76.
M76 is a planetary nebula, a glowing cloud of gas ejected by a sun-like star at the end of its lifetime. The central bar structure is actually a ring seen edge-on. This was likely sculpted by a binary companion star. Two lobes extend from the bar to the left and right of the ring.
STS-31, the #SpaceShuttle mission that deployed the #Hubble Space Telescope, launched #OTD in 1990: April 24.
However, the astronauts didn't deploy the observatory until April 25.
My view -- which is not held by the good folks at STScI -- is that Hubble's birthday is thus the 25th; I liken it to April 24th is when Hubble's parents drove to the hospital / went into labor, but the 25th is when it was born. #Astrodon#HistoryOfAstronomy#NASA
What a show! To celebrate the 34th launch anniversary of the legendary #Hubble telescope, NASA is sharing its observation of the Little Dumbbell Nebula—an expanding double-sided bubble of glowing gasses from a dying star: https://bit.ly/3W2Kfw2
A behind the scenes look at the recent press release on finding asteroid trails in #Hubble's back catalog of images.
The first image is uncalibrated. Most of the dots and streaks are from cosmic rays, high-energy particles from space, hitting the detector. The long streaks running across the middle top of the image are from the asteroid.
The post explains the choices Visuals Developer Joe DePasquale made to get to the second full-color image that ran with the release.
Astronomers used #Hubble's unique capabilities to identify a largely unseen population of very small asteroids. The treasure hunt required perusing 37,000 Hubble images. The payoff? Finding 1,701 asteroid trails: https://bit.ly/4cYTBio
Improving the foundation of the cosmic distance ladder and reinforcing the possibility of physics beyond ΛCDM:
Small Magellanic Cloud Cepheids Observed with HST Provide a New Anchor for the SH0ES Distance Ladder
by Louise Breuval and co-authors https://arxiv.org/abs/2404.08038
There is something seriously wrong with our understanding of the universe. Scientists using the James Webb and Hubble space telescopes have triple-checked and confirmed that depending on where we look, the universe is expanding at bafflingly different rates. Live Science explains more, including how scientists are ruling out a measurement error as the cause of the “Hubble Tension.” https://flip.it/VDvM6g #Science#Space#Hubble#HubbleTension#Universe#JWST