threelonmusketeers

I propose the hydrogen cyanide - fluorine rocket.

It has the fabulous potential for a vacuum Isp of up to 380s, with a propellant mix density of 1023 kg/m^3, handily beating methalox mixes. It is non-cryogenic and burns at over 4000K.

Exhaust is 43.3% hydrogen fluoride.

Source

Muon Space, which launched its FireSat protoflight mission in March, is developing a dedicated constellation of satellites to track wildfires globally in near real-time. The company is working with the nonprofit Earth Fire Alliance to build out the “FireSat” network in low Earth orbit (LEO). These satellites are equipped with multispectral electro-optical and infrared (EO/IR) sensors.

“This would be the first dedicated constellation designed to global wildfire detection and response,” Brian Collins, executive director of the Earth Fire Alliance, said May 18 at the GEOINT Symposium.

“With a long-term goal to deploy as many as 50 FireSats, that would enable a 15-minute revisit rate across the planet,” he said. “So we can see the fire move and we can move resources accordingly.”

Muon’s FireSat platform is designed for dual-use applications, serving both civilian disaster response and national security needs.

Starlink Group 11-16 launch out of SLC-4E in California is currently scheduled for 2025-05-22 22:03 UTC, or 2025-05-22 15:03 local time (PDT). Booster 1075-18 to land on Of Course I Still Love You.

• SpaceX mission page
• NextSpaceflight page

Webcasts:

• Space Affairs: https://www.youtube.com/watch?v=4-bCWJOh-4Q
• Spaceflight Now: https://www.youtube.com/@SpaceflightNowVideo/streams
• NASASpaceflight: none
• The Launch Pad: https://www.youtube.com/watch?v=J3oWmFLdCHM
• SpaceX:
• The Space Devs: https://www.youtube.com/@thespacedevs/videos

Are you annoyed Youtube scrolling to the top of the page when clicking timestamps? Install this and it won't scroll back up again.

Note:
This is intended for users who have a script that creates a floating mini player when you scroll down to the comments (video player always visible), or you simply want to listen to music while going through the timestamps.

Not the author of this script, but it just happened to suit my exact needs, so I thought I'd share it here in case anyone else has a similar use case.

cross-posted from: https://sh.itjust.works/post/18577916

CoS17:

‘I’m going to be expelled!’ Ginny wept, as Harry helped her awkwardly to her feet. ‘I’ve looked forward to coming to Hogwarts ever since B-Bill came and n-now I’ll have to leave and – w-what’ll Mum and Dad say?’

This comment seems slightly strange once you calculate that Ginny was barely a year old when Bill left for Hogwarts. I guess she was a precocious baby?

Starfish Space is hoping to prove the concept of being able to dock to unprepared satellites for repair, refueling, or repositioning in orbit. The mission, known as Otter Pup 2, is now set to launch aboard the SpaceX Transporter-14 rideshare mission.

This follows the company’s first attempt, which saw the Otter Pup 1 mission unable to dock with its target due to a thruster failure.

The target will be a D-Orbit ION spacecraft which will simulate a client payload, which is not equipped with a traditional docking adapter or capture plate as you might see aboard a space station or other rendezvous target.

Instead, Starfish Space’s Nautilus capture mechanism will feature a special end effector connected to the end of the capture mechanism. This end effector will enable Otter Pup 2 to dock with the ION through electrostatic adhesion.

“An electromagnet will be integrated into the end effector and will be used as a backup option to the electrostatic end effector, to dock with the ION through magnetic attraction,” the company notes.

The goal is to eventually commission its Otter satellite servicing vehicle to allow for servicing of previously launched satellites. The company’s first Otter missions include customers such as NASA, the U.S. Space Force, and Intelsat, with the goal of flying those missions as soon as 2026.

Transporter-14 is currently scheduled to launch no earlier than June 1, 2025.