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August 27, 2021 Archives

Friday, August 27, 2021

THE HAPPENING WORLD: SpaceX CRS-23 Cargo Launch to the International Space Station

Launch is scheduled for an instantaneous launch window at 07:37 UTC on 2021-08-28. Weather is predicted as only 40% favourable for launch at that time. If weather forces a delay, there is a backup launch window at 07:14 UTC the next day, 2021-08-29, when weather is predicted to be 60% favourable.

Update: Launch scrubbed due to multiple violations of weather constraints. They'll probably try the backup launch opportunity at 07:14 UTC on Sunday, 2021-08-29, unless weather further deteriorates. (2021-08-28 12:26 UTC)

Posted at 19:16 Permalink

THE HAPPENING WORLD: Astra LV0006 Orbital Test Flight

Here is more about Astra, the rocket, and the flight. The launch window opens at 21:00 UTC on 2021-08-27, but extends through September 11th, with multiple opportunities in case of delays. The video coverage will begin one hour before the launch time, whenever that may be.

Update: Launch aborted at T0, after first stage engine start. The launch attempt has been scrubbed for the day, with a new launch time not yet announced. If the problem is resolved in time, another launch opportunity is available tomorrow. (2021-08-27 21:56 UTC)

Posted at 19:05 Permalink

CONTEXT: Looking Ahead to Science with the James Webb Space Telescope

Assuming it actually works, and they're allowed to call it that.

Posted at 13:07 Permalink

CONTINUITY: Unconditionally Secure Relativistic Multi-Party Biased Coin Flipping and Die Rolling

Posted at 12:40 Permalink

THE HAPPENING WORLD: Japan Tests Rotating Detonation Wave Engine in Space

Here is a Scott Manley video explaining how rotating detonation engines work and why they can be more efficient than conventional combustion engines.

Posted at 11:36 Permalink

TRACKING WITH CLOSEUPS: Visualising Tomography

Posted at 11:16 Permalink