Having two buttons where one would do .... is progress ???
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I've had an account with Heavens-Above for a number of years and it's one of a number of sites I use from time to time.I usually use this site:
but I've set up an account so can get predictions for multiple visible objects from my location. I know a lot of people are reluctant to give up this information, but I've been on it for years.
This site is closely associated with SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
and is linked from the header bar on that site as 'Flybys.'
They plot Hamradio satellites as well but I don't have the gear for using those. (Busman's holiday !! )
And if you look at the image you can see some of the stars that were where they weren't.I just saw this digital enhancement of Einstein's Eclipse. This occurred in 1919 on the expedition to photograph it from several different positions that was to test a prediction of Albert Einstein's new General Theory of Relativity, which it did spectacularly.
The original photographic plates were processed and cleaned up to reveal a spectacular prominence on the Sun's surface. Absolutely colossal. It took some time, but I'd say it was well worth it.
restored.png (1500×1000) (spaceweather.com)
It would seem helicopters misbehave on Mars the same as Earth. They've postponed the first flight to check out a problem. I'm not criticising NASA here, they're trying to do something never before attempted. Fly a helicopter from a distance of 173,000,000 miles, Mars is on the other side of the Sun now.
Brings to mind the old saying about choppers: If nothing's broken, don't worry. It soon will be.
Mars Helicopter Flight Delayed to No Earlier than April 14 - NASA Mars