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arakhis_, do astronomy w Hubble peers deep into Uranus, finds extra time
@arakhis_@feddit.org avatar

That’s what’s gonna happen when you peer deep into uranus

Yawweee877h444, do astronomy w Hubble peers deep into Uranus, finds extra time

If you’ve been wondering how long the day on Uranus is, you probably need to get out more.

Great opening sentence.

TachyonTele,

Touch gas

DonutsRMeh, do astronomy w Hubble peers deep into Uranus, finds extra time
Nougat, do astronomy w Hubble peers deep into Uranus, finds extra time

Uranus is vastly larger than the Earth.

lemmyng, do astronomy w Hubble peers deep into Uranus, finds extra time
@lemmyng@lemmy.ca avatar
oxjox, do astronomy w Hubble peers deep into Uranus, finds extra time
@oxjox@lemmy.ml avatar
will_a113, do astronomy w Advanced solar sail mission prepares to catch the wind in the void of space

The interesting part of the article:

The new flexible polymer and carbon composite boom is coupled with a twelve-unit (12U) CubeSat built by NanoAvionics. After the mission launches atop a Rocket Lab Electron rocket from the company’s Launch Complex 1 in Māhia, New Zealand, the spacecraft will go into a Sun-synchronous orbit at an altitude of about 600 miles (~1,000 km) and the sail will deploy in about 25 minutes to cover an area of 860 ft² (80 m²) with the boom unfolding from the size of a hand to 23 ft (7 m) long. Once deployed, the sail will adjust the vehicle’s orbit by angling itself in relation to the solar wind.

Atelopus-zeteki,
@Atelopus-zeteki@kbin.run avatar

Yar! Sailing the Solar Winds! TBH, been waiting for this since I first heard of solar sails. Yay, ingenious tool using primates!!!

Tar_alcaran, do scifi w China is building a railgun that can hurl crewed spacecraft into orbit

If you want to reach LEO velocity and stay under 5g, you’d need a 860km long railgun…

This was posted in the correct community, because it’s about as real as the hyperloop

TropicalDingdong, do scifi w China is building a railgun that can hurl crewed spacecraft into orbit
@TropicalDingdong@lemmy.world avatar

yeet

lettruthout,

Maybe even megayeet.

But I sure hope they can pull this off.

thr0w4w4y2, do scifi w China is building a railgun that can hurl crewed spacecraft into orbit

humans can still function when insane G forces have turned them into jelly right?

atocci, (edited )

While railguns are known for rapidly accelerating projectiles to hypersonic speeds over the short length of a gun barrel, there's no limit on how slowly they can accelerate something or how long the "rail" part of the railgun can be. Accelerating "slowly" over a long distance is totally possible!

Repelle,

Sure, but it’s gonna require one hell of a long rail…

MyTurtleSwimsUpsideDown,

Make it a circular rail with an off-ramp; like a particle accelerator. Still very ambitious.

sushibowl,

That would put the g-forces back in play: the faster you go around the rail the stronger the centripetal force that keeps you going in a circle. If the rail is straight the force only depends on acceleration not speed.

NOT_RICK, do scifi w China is building a railgun that can hurl crewed spacecraft into orbit
@NOT_RICK@lemmy.world avatar

And not get crushed by the G forces how exactly?

Bizarroland, do scifi w China is building a railgun that can hurl crewed spacecraft into orbit
@Bizarroland@kbin.social avatar

你们中有些人可能会死,但这是我愿意冒的风险

Bizarroland,
@Bizarroland@kbin.social avatar

Just to save you guys a click, this is a Google translate of, "some of you may die but that is a risk I'm willing to take"

smuuthbrane, do scifi w China is building a railgun that can hurl crewed spacecraft into orbit
@smuuthbrane@sh.itjust.works avatar

I hereby dub any crew member sent to space in this manner a Cannonaut.

MushuChupacabra, do scifi w China is building a railgun that can hurl crewed spacecraft into orbit
@MushuChupacabra@lemmy.world avatar

That initial acceleration is gonna be a bit shitty.

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