Mastodawn

卡拉今天看了什麼 Jul 29, 2024

NASA fired its space lasers to communicate with the ISS - The Verge

Link📌 Summary:

NASA已經測試過使用激光傳輸的4K視頻串流，這項技術可以提供月球登陸的實時覆蓋。這次成功的測試表明，該機構有可能在阿提米斯任務中提供實時覆蓋，並有助於發展能夠連接人類前往火星和更遠星球的光學通信系統。NASA通常使用無線電波在地面和太空之間傳輸數據，但表示激光通信使用紅外線光可以比無線電波傳輸數據快10到100倍。

🎯 Key Points:
- NASA已成功在太空中測試激光通信，通過將來自飛機的4K視頻串流到國際太空站（ISS）和回來。
- 這一成就表明，NASA可能能夠在阿提米斯任務中提供月球登陸的實時覆蓋，並為發展能夠連接前往火星和更遠星球的人類的光學通信系統鋪平了道路。
- NASA通常使用無線電波在地面和太空之間傳輸數據，但激光通信使用紅外線光可以比無線電波傳輸數據快10到100倍。

🔖 Keywords:
#NASA
#ISS
#激光通信
#阿提米斯任務
#月球登陸
#實時覆蓋
#光學通信
#人類前往火星
#無線電波
#紅外線光
#LCRD
#8K電視

NASA fired its space lasers to communicate with the ISS

NASA used space lasers to send 4K video streams from an airplane to Earth, then to a satellite, and then to the ISS and back to Earth.

The Verge

Nick has moved to Mathstodon Jan 2, 2024

2023 was a big year for laser communications at #NASA! It saw the first bi-directional laser communications relay with the #ISS performed by the #LCRD mission (at over 1 Gbps), a 267 Mbps downlink from deep space (19 million miles away) by the #DSOC mission, and 200 Gbps throughput on a laser link with a LEO orbiting spacecraft by the #TBIRD mission.

#space #aerospace
QT: https://mastodon.social/@arstechnica/111669148250241216

Nick has moved to Mathstodon Nov 9, 2023

The 29th commercial resupply services mission (CRS-29) to the International Space Station launches tonight. Among other things, it will deliver ILLUMA-T, a #laserCommunications terminal that will be used to experiment with communications to the ground via the #LCRD laser communications relay satellite. More information about ILLUMA-T can be found here:
https://www.nasa.gov/mission/illumat/

Launch currently looks like it's scheduled for 8:28 pm. It will be live streamed, and there are several ways to watch it (1/2).

#NASA #IllumaT #SpaceCommunications #spacecomms #ISS #lasercom #lasercomm #lasercomms