Hacker News with Generative AI: Astronomy

An Extreme Cousin for Pluto? Possible Dwarf Planet at Solar System Edge (ias.edu)
A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute for Advanced Study’s School of Natural Sciences, has discovered an extraordinary trans-Neptunian object (TNO), named 2017 OF201, at the edge of our solar system.

Astronomy, Solar System, Dwarf Planets, Space Exploration

23 points by raattgift 10 days ago | 11 comments

Astronomical Calculations for Hard Sci-Fi in Common Lisp (2022) (borretti.me)
In The Epiphany of Gliese 581, a group of explorers search the mortal remains of a dead superintelligence. The expedition begins in Beta Pictoris—today an unremarkable blue star; in the story, a posthuman Dyson swarm civilization of quadrillions—then passes through Gliese 581, and ends where it started.

Science Fiction, Programming, Astronomy, Common Lisp

13 points by e-topy 12 days ago | 0 comments

Are the Colors in Astronomical Images 'Real'? (scientificamerican.com)
In colorful photographs of galaxies, stars, planets, and more, what you see isn’t necessarily what you get

Astronomy, Image Processing, Science, Space

19 points by bryanrasmussen 13 days ago | 30 comments

Spruce trees communicate during a solar eclipse (phys.org)
An international study has revealed spruce trees not only respond to a solar eclipse but actively anticipate it by synchronizing their bioelectrical signals hours in advance into a cohesive, forest-wide phenomenon.

Science, Plants, Ecology, Astronomy

8 points by geox 13 days ago | 0 comments

Weird planet is orbiting backwards between two stars (newscientist.com)
After two decades of debate, research confirms that an odd binary star system has an equally odd planetary companion

Space, Astronomy, Binary Stars, Planets

6 points by speckx 15 days ago | 0 comments

Planet squeezed in between two stars (arstechnica.com)
While our Sun prefers to go solo, many other stars are parts of binary systems, with a pair of stars gravitationally bound to each other.

Astronomy, Stars, Binary Systems

26 points by Archelaos 15 days ago | 7 comments

Possible new dwarf planet found in our solar system (minorplanetcenter.net)
The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.

Astronomy, Solar System, Dwarf Planets

163 points by ddahlen 17 days ago | 99 comments

Jupiter was formerly twice its current size, had a much stronger magnetic field (phys.org)
Understanding Jupiter's early evolution helps illuminate the broader story of how our solar system developed its distinct structure.

Jupiter, Solar System, Astrophysics, Astronomy, Planetary Science

128 points by pseudolus 17 days ago | 75 comments

Jupiter was formerly twice its current size and had much stronger magnetic field (phys.org)
Understanding Jupiter's early evolution helps illuminate the broader story of how our solar system developed its distinct structure.

Jupiter, Solar System, Astronomy, Science, Planets

15 points by amichail 17 days ago | 0 comments

Dead Stars Don’t Radiate (wordpress.com)
Three guys claim that any heavy chunk of matter emits Hawking radiation, even if it’s not a black hole:

Physics, Black Holes, Astronomy, Radiation

246 points by thechao 21 days ago | 148 comments

Wow@Home – Network of Amateur Radio Telescopes (phl.upr.edu)
A network of small radio telescopes offers several distinct advantages compared to large professional observatories.

Amateur Radio, Astronomy, Telescopes

196 points by visviva 21 days ago | 35 comments

Weather Report from Saturn's Moon Titan (sci.news)
Using data from the NASA/ESA/CSA James Webb Space Telescope and the Keck II telescope, astronomers found evidence of cloud convection in the northern hemisphere of Titan.

Space Exploration, Astronomy, Weather, Telescopes

24 points by astroimagery 23 days ago | 1 comments

New research reveals the strongest solar event ever detected, in 12350 BC (phys.org)
An international team of scientists has discovered an extreme spike in radiocarbon corresponding to the year 12350 BC during the dusk of the last Ice Age.

Science, Astronomy, History, Climate Change

239 points by politelemon 23 days ago | 134 comments

Radiance Contrasts at Possible Lunar Water Ice Exposures Seen by ShadowCam (iopscience.iop.org)
Surface water ice within lunar permanently shadowed regions (PSRs) could have an enhanced visible wavelength reflectance relative to lunar regolith.

Space Exploration, Lunar Science, Astronomy, Water Ice

11 points by PaulHoule 25 days ago | 0 comments

NASA turns the screams of a dying star into music (space.com)

Space, Astronomy, Music, Science

4 points by dylan604 25 days ago | 1 comments

Taking a look at the next generation of telescopes (arstechnica.com)
A large moon and an extremely large telescope.

Astronomy, Telescopes, Technology

30 points by voxadam 25 days ago | 15 comments

Universe expected to decay in 10⁷⁸ years, much sooner than previously thought (phys.org)
The universe is decaying much faster than thought. This is shown by calculations of three Dutch scientists on the so-called Hawking radiation. They calculate that the last stellar remnants take about 1078 years to perish. That is much shorter than the previously postulated 101100 years.

Physics, Astronomy, Science, Universe

225 points by pseudolus 26 days ago | 309 comments

Galactic Coordinate System (wikipedia.org)
The galactic coordinate system is a celestial coordinate system in spherical coordinates, with the Sun as its center, the primary direction aligned with the approximate center of the Milky Way Galaxy, and the fundamental plane parallel to an approximation of the galactic plane but offset to its north.

Astronomy, Galactic Coordinates

5 points by olddustytrail 28 days ago | 0 comments

The Sun May Be Entering an Era of Stronger 11-Year Cycles (scientificamerican.com)
A year ago this weekend, the sun’s activity created some of the most spectacular auroras on record, with displays visible as far south as Florida.

Space Weather, Solar Activity, Astronomy, Science

8 points by Brajeshwar 28 days ago | 4 comments

Dyson spheres could exist – but there's a catch (livescience.com)

Space Exploration, Dyson Spheres, Science, Astronomy

12 points by ricecat 28 days ago | 5 comments

From the Debris of Halley's Comet (nautil.us)
Fragments of the storied Halley’s Comet are zinging into Earth’s atmosphere this week in the annual Eta Aquarids meteor shower, which will peak in the early dark of Tuesday morning.

Astronomy, Space, Meteor Showers, Halley's Comet

4 points by Bender 28 days ago | 0 comments

18-Year-Old U.S. Teen Develops AI to Reveal 1.5M New Space Objects (techoreon.com)
What began as a childhood fascination with stars has turned into one of the most striking discoveries in recent astronomy.

Artificial Intelligence, Space, Astronomy, Teenagers

22 points by Guptos 30 days ago | 6 comments

Exceptionally rare radio sources detected in the distant universe (mashable.com)
Astronomers have spotted a pair of exotic features believed to be the aftermath of a colossal cosmic smackdown — not between two galaxies, but two groups of galaxies.

Astronomy, Space, Galaxies, Cosmic Events

19 points by slater 30 days ago | 1 comments

Is Planet Nine Alone in the Outer System? (centauri-dreams.org)
It was Robert Browning who said “Ah, but a man’s reach should exceed his grasp, or what’s a heaven for?” A rousing thought, but we don’t always know where we should reach.

Astronomy, Planet Nine

119 points by JPLeRouzic 32 days ago | 63 comments

NASA's SPHEREx Space Telescope Begins Capturing Entire Sky (nasa.gov)
After weeks of preparation, the space observatory has begun its science mission, taking about 3,600 unique images per day to create a map of the cosmos like no other.

Space Exploration, Astronomy, NASA, Telescopes, Science

9 points by rbanffy 32 days ago | 0 comments

Mega Mass Assembly with JWST: The MIRI EGS Galaxy and AGN Survey (arxiv.org)
We present the MIRI EGS Galaxy and AGN (MEGA) survey, a four band MIRI survey with 25 pointing in the Extended Groth Strip (EGS) extragalactic field.

Astronomy, Space Telescopes, Galaxies, Surveys

6 points by PaulHoule 33 days ago | 0 comments

Evidence of controversial Planet 9 uncovered in sky surveys taken 23 years apart (space.com)

Astronomy, Planet 9, Science

242 points by spchampion2 35 days ago | 249 comments

A visual feast of galaxies, from infrared to X-ray (esa.int)
On the left, the new Picture of the Month from the NASA/ESA/CSA James Webb Space Telescope features an astounding number of galaxies. On the right, as a blue glow, we see also the X-ray light coming from the blazing hot gas that fills the space between the galaxies.

Astronomy, Space Telescopes, Space Exploration, Infrared Astronomy, X-ray Astronomy

78 points by giuliomagnifico 36 days ago | 3 comments

NASA's SPHEREx Space Telescope Begins Capturing Entire Sky (nasa.gov)
After weeks of preparation, the space observatory has begun its science mission, taking about 3,600 unique images per day to create a map of the cosmos like no other.

Space Exploration, Astronomy, Telescopes, NASA

16 points by isaacfrond 36 days ago | 1 comments

Vatican Observatory (vaticanobservatory.org)
The Vatican Observatory is one of the oldest active astronomical observatories in the world, with its roots going back to 1582 and the reform of the Julian calendar.

Astronomy, Vatican, History

126 points by alexmolas 36 days ago | 53 comments