Astronomy
- How close can you be to a supernova? before things get uglywww.scientificamerican.com Don’t Panic—At Least, Not about a Nearby Supernova
An exploding star is a catastrophe on a cosmic scale, but here on Earth we’re safe from such astral disasters—for now
- KStars 3.7.2 Releasedknro.blogspot.com KStars 3.7.2 Released
KStars v3.7.2 is released on 2024.08.03 for Windows, MacOS & Linux . It's a bi-monthly bug-fix release with a couple of exciting features. A...
- New Phobia Just Dropped... "Dropped" D:
Screenshot of social media post. Reads, "Everyone was saying that the May geomag activity had no impact on the satellites. Of course we knew this was wrong. Over one hundred sats re-entered during this period and now a paper is showing that thousands of Starlinks had to move. Holy fuck. Imagine if those thousands had to re-enter. This. Is. Insane. We. Must. Stop. Launching. Shit. NOW. https://spaceweather.com"
- Falling Object?
I have no photos or videos, but I was on Topsail Island on vacation on June 4th around 11pm, where I saw a decently bright moving object erupt with a huge v-shaped tail for atleast 30 seconds. The tail was a faint green color. It fell from the eastern sky into the northeastern sky.
Google has been particularly unhelpful. Was wondering if you fine folks had any idea. I'm assuming space debris. But I cant find any other reports of anyone seeing it.
- A New Search for Ripples in Space From the Beginning of Time
The Simons Observatory, a group of microwave telescopes in the high desert of Chile, is starting to gather data to attempt to prove or disprove the theory of inflation.
Un-paywalled article from the NY Times.
- Alarmed by Climate Change, Astronomers Train Their Sights on Earth (NY Times)
> A growing number of researchers in the field are using their expertise to fight the climate crisis.
The article spotlights several astronomers who are attempting to fight climate change, sometimes through changing careers.
NYT gift link, should be un-paywalled.
- Nine Rebel Astronomy Theories That Went Dark - Nautilusnautil.us Nine Rebel Astronomy Theories That Went Dark
Bright ideas from astronomy’s biggest stars haven’t always worked out.
- What happens if you put a black hole into the sun?phys.org What happens if you put a black hole into the sun?
In a hypothetical scenario, small, primordial black holes could be captured by newly forming stars. An international team, led by researchers at the Max Planck Institute for Astrophysics, has now modeled the evolution of these so-called "Hawking stars" and found that they can have surprisingly long ...
- What to See in the Sky in January: Meteor Showers, Planets and Comets | Smart News| Smithsonian Magazinewww.smithsonianmag.com What to See in the Sky in January: Meteor Showers, Planets and Comets
From the Quadrantids to a "swarm of stars," here are the celestial spectacles you won’t want to miss this month
- James Webb telescope discovers dark secret of 'The Brick,' a gas cloud flipping assumptions about how stars are bornwww.livescience.com James Webb telescope discovers dark secret of 'The Brick,' a gas cloud flipping assumptions about how stars are born
Peering deep into 'The Brick,' a dark, chaotic gas cloud at the heart of the Milky Way, the James Webb Space Telescope uncovered secrets that could shake up theories of star formation.
- Dark matter-hunting satellite ARRAKIHS to launch in 2030. Here's how it will workwww.space.com Dark matter-hunting satellite ARRAKIHS to launch in 2030. Here's how it will work
The mission is planned to study the dark matter haloes of 75 different galaxies.
- In 1952, a group of three 'stars' vanished—astronomers still can't find themphys.org In 1952, a group of three 'stars' vanished—astronomers still can't find them
On July 19, 1952, Palomar Observatory was undertaking a photographic survey of the night sky. Part of the project was to take multiple images of the same region of sky, to help identify things such as asteroids. At around 8:52 that evening a photographic plate captured the light of three stars clust...
- We May Have Just Found Evidence of a Cosmic String: a 'Crease' in The Universewww.sciencealert.com We May Have Just Found Evidence of a Cosmic String: a 'Crease' in The Universe
A strange pair of galaxies several billion light-years away could be evidence of a hypothetical 'crease' in the Universe's fabric known as a cosmic string.
- JWST Might Have Spotted the First Dark Matter Starswww.scientificamerican.com JWST Might Have Spotted the First Dark Matter Stars
Stars fueled by the self-annihilation of dark matter might have been spotted for the first time by JWST
- New Radio Astronomical Observations Confirm Unintended Electromagnetic Radiation Emanating from Large Satellite Constellationscps.iau.org New Radio Astronomical Observations Confirm Unintended Electromagnetic Radiation Emanating from Large Satellite Constellations - CPS
IAU Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference (CPS)
cross-posted from: https://lemmy.ml/post/1871351
> Scientists use the LOFAR telescope to observe low-frequency radio waves from satellites in large constellations for the first time. “Unintended electromagnetic radiation” emanating from onboard electronics in Starlink satellites was detected which could impact astronomical research. Further study is now ongoing.
- The red color of Mars is only inches deepbigthink.com The red color of Mars is only inches deep
The surface and atmosphere is colored by ferric oxides. Beneath a very thin layer, mere millimeters deep in places, it's not red anymore.
- The Absolute Maximums of Time and Space Relativitycoco1453.wordpress.com The Absolute Maximums of Time and Space Relativity
Just because time is relative does not mean time is subjective. Time is a fundamental objective part of reality, and time and distance relativity is probably less weird than you think it is. There …
- Thinking in Metric for Astronomycoco1453.wordpress.com Thinking in Metric for Astronomy
This is a chart of metric values to help in understanding the large distances of outer space. Metric is perfect for providing an easy understanding of both absolute and relative distances in astron…
- Putting the Size of the Observable Universe in Perspectivetwistedsifter.com Putting the Size of the Observable Universe in Perspective
The age of the universe is about 13.75 billion years. The diameter of the observable universe is estimated at about 28 billion parsecs (93 billion light-years). As a reminder, a light-year i…
- How Small Was The Universe At The Start Of The Big Bang?www.forbes.com How Small Was The Universe At The Start Of The Big Bang?
If it wasn't a singularity, how small could it have been?
- The strongest evidence for a Universe before the Big Bangbigthink.com The strongest evidence for a Universe before the Big Bang
The hot Big Bang is often touted as the beginning of the Universe. But there's one piece of evidence we can't ignore that shows otherwise.
- Lets get this going yo
What do you think?
