astronomy

Magazyn ze zdalnego serwera może być niekompletny. Zobacz więcej na oryginalnej instancji.

troyunrau, w Senate bill would create center to study satellite interference with astronomy
@troyunrau@lemmy.ca avatar

This is a pop-science problem and not a real science problem. Any astronomy imaging system worth its salt has image stacking algos that remove transients easily enough.

Gnomie,

Here’s an actual scientist saying the number of satellites interferes with astronomy.

troyunrau,
@troyunrau@lemmy.ca avatar

Hi, it’s me. An actual scientist. Did grad school in planetary science. The same techniques we use to spot asteroids are the techniques used to spot satellites. But removing them is even simpler. It’s not algorithmically hard at all.

In fact, it’s so simple that I’ll write it out: take several images (at least three) in quick succession and take the median value across those images.

Oh hey, that was easy. Makes a good despeckle filter too for cosmic ray strikes or whatever else.

Etterra, w Size Comparison: Pluto and Australia

That’s awesome. And to think, it’s only slightly less inhospitable in Australia!

mindbleach, w Size Comparison: Pluto and Australia

The Alice Springs Pluto Observatory has opened considerably under-budget.

EmDash, w What no one has seen before: new study simulates gravitational waves from failing warp drive

PBS Spacetime recently had a video on this: youtu.be/8hvzF5oQe1g?si=e9Tw0XrMILbf4Ql6

homesweethomeMrL, w Suprising obvious fact: The Sun is a Star

That’s a relatively modern understanding too.

Well, depending. :)

toast, w NASA’s Curiosity Rover Discovers a Surprise in a Martian Rock

I hope NASA is keeping a lookout for additional deposits of charcoal and saltpeter.

dmMeYourNudes, w Jump Into A Black Hole With NASA’s Incredible New Visualization

No thanks. If I want to feel like I’m falling into a black hole all I have to do is read the news.

MindTraveller, w Astronomers discover two new Milky Way satellite galaxy candidates

Is dark matter just dwarf galaxies?

corsicanguppy, w OP: "This is my most advance moon photograph EVER it consist of 81000 images and over 708GB of data." (see comments.)

Wow. The level of writing failure in the headline is ALSO astronomical.

Steak,

They take pictures of other balls floating around they don’t teach English give em a break

funkless_eck,

he missed two letters.

Giftzwerg02,

ASTRONOMICAL!!!

ArmokGoB, w OP: "This is my most advance moon photograph EVER it consist of 81000 images and over 708GB of data." (see comments.)

Linking to Reddit kind of defeats the purpose of using Lemmy.

jol,

At least they posted the source

ArmokGoB,

Yes. However, we shouldn’t be sourcing content from Reddit at all.

jol,

I disagree. I welcome OC content like this.

mbfalzar,

I too welcome original content content

ArmokGoB,

It’s not OC. If it was, OP wouldn’t have had to link to Reddit to share it.

deblan, w OP: "This is my most advance moon photograph EVER it consist of 81000 images and over 708GB of data." (see comments.)
@deblan@mamot.fr avatar

@fossilesque beautiful!

shortwavesurfer, w [Scott Manley] How Failed Gyros Are Making Hubble's Life Harder

His videos are really fun to watch.

Hestia, w First proof that “plunging regions” exist around black holes in space | University of Oxford

I mean, it’s pretty common sense that at some point inertia would be overpowered by the gravitational pull of the black hole. Pretty sure that’s what would happen if the moon got a little too close to us, too.

mouth_brood,

Of course there’s a point where something cannot escape the gravity. What this article states is that instead of continuing to orbit while perpetually getting closer to the singularity, once the plunging region is hit the light/matter/whatever drops in basically a straight line at the speed of light to the center.

Cokeser, w Mysterious Picture crowd of giant spiders on Mars, what's that?

TL;DR

Of course no spider aliens as the clickbait might insinuate.

These are cracks in the ice sheet caused by gases which when released to the surface bring dark material with them is spread on the ground in that manner.

Sunlight causes the carbon dioxide ice at the bottom of the layer to turn into gas, then build up and break the ice sheets on it. The gas explodes in the spring on Mars, dragging dark material to the surface over time and destroying the ice layer as thick as a meter."

Bob_Robertson_IX, w Vera Rubin's Primary Mirror Gets its First Reflective Coating

What a great article! Very informative and easy to read.

The telescope sounds cool too! An 8.5 meter mirror?! And it’s designed to be able to recoat it over time!

  • Wszystkie
  • Subskrybowane
  • Moderowane
  • Ulubione
  • rowery
  • esport
  • Psychologia
  • muzyka
  • astronomy@mander.xyz
  • test1
  • NomadOffgrid
  • Technologia
  • fediversum
  • ERP
  • healthcare
  • krakow
  • Gaming
  • FromSilesiaToPolesia
  • Cyfryzacja
  • Blogi
  • shophiajons
  • informasi
  • retro
  • Travel
  • Spoleczenstwo
  • gurgaonproperty
  • slask
  • nauka
  • sport
  • niusy
  • antywykop
  • Radiant
  • warnersteve
  • Wszystkie magazyny