tritonice
tritonice t1_j1v5t92 wrote
Reply to comment by This_Username_42 in do we really believe aliens can decode the golden records by Calm-Confidence8429
Both Voyagers communicate with Earth almost daily still to this day. Hopefully until at least 2025, but we are in the endgame on both.
The transmitters are 20w, and even if they could transmit for eternity, it currently takes a dish 70m in diameter to "hear" (they can array two 34m dishes still, but it's getting very hard even with that setup). Bad weather at a DSN site (Autstralia is the only one that has line of sight to V2) can actually wash out the signal. You literally could not hear its signals at light year distances because it would be too weak and blend with background noise.
Follow @nascom1 on Twitter. He is the source of most of this and is excellent!!
tritonice t1_ja6ieev wrote
Reply to comment by pbWdq in Moon taken on my father’s Questar 7 by FoodAndCatSubs
We’ve observed impacts and have photographed the subsequent craters. Obviously the frequency and size are nothing like the early days, but it still happens.