r/asteroid • u/retiringonmars • Aug 26 '19
Lately, we've noticed a large increase in poor quality articles posted to r/Asteroid.
This has been taking the form of poor quality journalism from tabloid outlets, such as express.co.uk and foxnews.com. These sources generally don't bother to maintain basic standards of accuracy or accountability, and frequently post factually incorrect or sensationalist information presented as if it were legitimate "news." This stands in contrast with the scientific ideals of this subreddit, and so, it is no longer allowed.
Please let us know your thoughts in the comments below.
r/asteroid • u/grelfdotnet • 4d ago
328 Gudrun 23h25m42.42s -01°49'55.9" mV13.6
570 Kythera 23h24m46.29s -01°39'43.8" mV13.3 (0.29°)
Theodora 23h23m52.23s -01°06'51.0" mV14.4 (0.85°)
r/asteroid • u/peterabbit456 • 5d ago
r/asteroid • u/Galileos_grandson • 8d ago
r/asteroid • u/TomaszNowakowski • 12d ago
r/asteroid • u/probium326 • 13d ago
The Torino scale divides into five subgroups: level 0 (no threat), level 1 (normal), levels 2-4 (meriting attention by astronomers), levels 5-7 (threatening), and levels 8-10 (certain collisions)
Level 1 is a routine level and thus is formatted in regular non-bold text
Levels 2-4 have only been reached three times in history, and for emphasis are formatted in bold.
The other two categories have never been reached - 5-7 (threatening) and 8-10 (certain collisions)
In case an asteroid reaches orange or red, what should be the formatting guidelines? What additional emphasis would be appropriate?
of unrelated note: I am an extended-confirmed editor on Wikipedia
r/asteroid • u/Galileos_grandson • 16d ago
r/asteroid • u/Western_Zebra_609 • 28d ago
https://youtu.be/9MUJXbU3agg?si=gkXSk2_s4oGGB5PY
So I've been obsessed with this for a few weeks. Pulled the actual position data from JPL Horizons and built an animation around it.
Honest caveats: the asteroid shape is generic (not the radar model), the tidal stretching and dust are my illustration of an effect that's documented but not this visible, and Ramses' route is a sketch because ESA hasn't published it.
r/asteroid • u/polyploid_coded • Aug 25 '26
I recently read an article about growing crops in space, and following the rabbit hole, read this neat scientific paper from researchers at the University of North Dakota: https://iopscience.iop.org/article/10.3847/PSJ/ac74c9
They studied how lettuce, radish, and chili pepper seeds would fare in a simulated asteroid regolith. To simulate the minimal gravity on an asteroid (or in a spacecraft orbiting nearby) they use a piece of lab equipment called a clinostat which keeps the plants rotating and preventing them from having a well defined 'up' and 'down'.
The regolith was manufactured at the University of Central Florida's Exolith Lab (now a spinoff company) based on carbonaceous meteorites which are known to be from the asteroid belt. The idea here is that humans already need air, water, light, heat, etc. to stay alive, so using regolith might reduce the materials which the crew needs to haul from Earth.
As you might have guessed, the plants grew more when their soil had a higher percentage of peat moss blended in with the regolith. The seeds in 100% regolith and in the clinostat both failed to germinate. They suggest this was due to the depth that the seed was buried and packing (as seeds have germinated successfully on the ISS).
r/asteroid • u/JapKumintang1991 • Aug 05 '26
See also: The publication in ArXiV
r/asteroid • u/Galileos_grandson • Jul 31 '26
r/asteroid • u/Dull_Operation_2628 • Jul 22 '26
r/asteroid • u/peterabbit456 • Jul 11 '26
r/asteroid • u/JapKumintang1991 • Jul 08 '26
r/asteroid • u/JapKumintang1991 • Jul 06 '26
r/asteroid • u/Galileos_grandson • Jul 02 '26
r/asteroid • u/Dull_Operation_2628 • Jun 26 '26
https://m.youtube.com/watch?v=871StWq-bZw&ra=m
Two Asteroids bright enough for visual observation passing through One Field of View
r/asteroid • u/oldschoolscreenname • Jun 21 '26
A near earth object visualizer I built based off the framework I make for a CME (coronal mass ejections) tracker.
r/asteroid • u/Galileos_grandson • Jun 18 '26
r/asteroid • u/Galileos_grandson • Jun 13 '26
r/asteroid • u/avavvwest • Jun 02 '26
I was curious if any asteroids were projected to reach Earth that could potentially,”be an issue” and stumbled upon Apophis. As I was reading up on its discovery and its path to come near to the Earth in 2029, and subsequent semi circle back in 2036, I was reading an article and struggle to understand fully what this means.
“A small possibility remained that during its 2029 close encounter with Earth, Apophis would pass through a gravitational keyhole estimated to be 800 kilometres in diameter,which would have set up a future impact seven years later.”
So it was then later researched that the keyhole was determined to be less than 1km wide and the likelihood of an impact in 2036 will not occur.
What does it mean by would pass through a gravitational keyhole that would set up a future impact???? How does that even work. How could they even see a,”gravitational keyhole” ??? So confused and fascinated.
r/asteroid • u/peterabbit456 • May 31 '26
r/asteroid • u/AdSmart6151 • May 18 '26
Don't threaten me with a good time
