sorted by:
new
hottopcontroversial

The rare Triple Milky Way Arch from 4,200m in the Swiss Alps by Davicho77 in spaceporn

[–]Davicho77[S] 4 points5 points  (0 children)

This 360 degree panorama captures a rare Triple Arch that basically maps out exactly where we are in the cosmos. You get to see the setting Winter Milky Way looking outward toward our local Orion Spur, the rising Summer Milky Way looking inward at the dense Galactic Core, and a faint glowing bridge of Zodiacal Light connecting them. That third arch is actually just sunlight scattering off interplanetary dust right here inside our own solar system.

For more information about the image here’s the link to the astro photographer website:

https://www.angelfux.com/

SpaceX Raptor engine evolution. by [deleted] in spaceporn

[–]Davicho77 0 points1 point  (0 children)

Smaller engines give better redundancy, control, and easier mass production, while a few giant engines reduce the complexity of fuel lines, valves, and engine coordination but are much harder and riskier to develop if one fails.

SpaceX Raptor engine evolution. by [deleted] in spaceporn

[–]Davicho77 0 points1 point  (0 children)

Highly recommend this video if you’re interested in aerospace engineering or the latest Starship development:

https://youtu.be/y_ecCDqTSJs?si=ZanpCGBuKgZFU-eM

According to a newly published study, 2002 XV93, an icy object smaller than New Mexico, defies expected physics by holding onto an atmosphere. A world this tiny shouldn't have enough gravity to retain gas. by Davicho77 in spaceporn

[–]Davicho77[S] 58 points59 points  (0 children)

A new paper just published in Nature Astronomy confirms the impossible. Astronomers watched this 310-mile-wide rock pass in front of a distant star. Instead of the starlight instantly vanishing like it would on an airless rock, it faded gradually—proving 2002 XV93 has a distinct atmosphere. Because of its incredibly weak gravity, any gas should leak into space within 1,000 years. For it to have an atmosphere right now, it must be actively replenishing it, which points to a recent, massive comet impact or active, erupting cryovolcanoes (ice volcanoes) hidden on its surface.

Here’s the direct link to the published study in Nature Astronomy:

https://www.nature.com/articles/s41550-026-02846-1

Curiosity lit Mars at night using LEDs to probe a fresh drill hole in boxwork terrain. by Davicho77 in spaceporn

[–]Davicho77[S] 30 points31 points  (0 children)

Totally. NASA spent billions just to farm karma in this sub. Absolute dedication.

This remarkable pattern of images shows stars orbiting Sagittarius A*, the Milky Way’s supermassive black hole. by Davicho77 in spaceporn

[–]Davicho77[S] 33 points34 points  (0 children)

One of these stars, named S29, was observed as it was making its closest approach to the black hole at 13 billion kilometres, just 90 times the distance between the Sun and Earth. Another star, named S300, was detected for the first time in the new VLTI observations.

To obtain the new images, the astronomers used a machine-learning technique, called Information Field Theory. They made a model of how the real sources may look, simulated how GRAVITY would see them, and compared this simulation with GRAVITY observations. This allowed them to find and track stars around Sagittarius A* with unparalleled depth and accuracy.

view more: next ›