Hacker News with Generative AI: Solar System

Size and albedo of the largest detected Oort-cloud object (arxiv.org)
The recently announced Oort-cloud comet C/2014 UN271 (Bernardinelli-Bernstein) is remarkable in at least three respects: (i) it was discovered inbound as far as ~29 au from the Sun (with prediscovery images up to ~34 au); (ii) it showed cometary activity already at almost 24 au; and (iii) its nuclear magnitude (Hr ~ 8.0) indicates an exceptionally large object.

Astronomy, Solar System, Comets, Space Exploration

119 points by belter 10 days ago | 62 comments

Highest-resolution images ever captured of the sun’s surface (smithsonianmag.com)
The European Space Agency (ESA) has just released four new, stellar images of the sun, including the highest resolution views to date of its full, visible surface, called the photosphere.

Astronomy, Space Exploration, Solar System, Photography

518 points by Brajeshwar 10 days ago | 134 comments

Uranus' moon Miranda may have an ocean beneath its surface (phys.org)
A new study suggests Uranus' moon Miranda may harbor a water ocean beneath its surface, a finding that would challenge many assumptions about the moon's history and composition and could put it in the company of the few select worlds in our solar system with potentially life-sustaining environments.

Astronomy, Moons, Oceans, Solar System, Life

39 points by geox 30 days ago | 7 comments

Ion engines could take us to the solar gravitational lens in less than 13 years (phys.org)
Sending an object to another star is still the stuff of science fiction. But some concrete missions could get us at least part way there. These "interstellar precursor missions" include a trip to the solar gravitational lens point at 550 AU from the sun—farther than any artificial object has ever been, including Voyager.

Space Exploration, Solar System, Physics, Technology

94 points by rbanffy 38 days ago | 79 comments

All asteroids in Solar System, visualized (github.com/DarkStar1982)
An app demo showing asteroid orbits using NASA MPC database.

Space, Visualization, Data, Astronomy, Solar System

117 points by d_silin 54 days ago | 30 comments

Ceres: An ocean world in the asteroid belt (astronomy.com)
Remnants of an ancient water ocean are buried beneath the icy crust of dwarf planet Ceres — or, at least, lingering pockets of one. That’s the tantalizing find presented August 10 by scientists working on NASA’s Dawn mission. Their research was laid out in a series of papers published in Nature.

Space Exploration, Astronomy, Dwarf Planets, Solar System, Water

126 points by JumpCrisscross 58 days ago | 68 comments

The first proposal for a solar system domain name system (blogspot.com)
Some years ago, I had to make a costume for an International Space University party and thought that I would go as a space archaeologist.

Domain Names, Space Exploration, Solar System

18 points by anigbrowl 64 days ago | 18 comments

Saturn's moon Mimas may hide a surprisingly young ocean (knowablemagazine.org)
Saturn’s moon Mimas, known for its uncanny resemblance to the Star Wars Death Star, might harbor liquid water beneath its icy shell. If true, similar seas could be hiding in plain sight, and the outer solar system may be far more habitable than previously thought.

Space Exploration, Astronomy, Moons, Solar System, Habitability

8 points by pseudolus 68 days ago | 0 comments

Hints of a Hidden Structure Detected at the Edge of the Solar System (sciencealert.com)
If you travel far enough away from the Sun, the Solar System becomes a lot more populated.

Space, Solar System, Astronomy

24 points by Brajeshwar 83 days ago | 5 comments

How the Sun looks from other planets (reddit.com)

Space, Solar System, Astronomy, Planets

5 points by behnamoh 129 days ago | 0 comments

Scientists discover CO2 and CO ices in outskirts of solar system (ucf.edu)

Science, Solar System, Astronomy, Chemistry

13 points by geox 193 days ago | 1 comments

Spacecraft Takes Close Up Video of the Sun, Revealing Otherworldly Hellscape (futurism.com)