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https://news.sky.com/story/scientists-spot-rare-einstein-ring-of-light-from-far-away-galaxy-which-has-never-been-observed-before-13306667 Gravitational lensing of one galaxy by another a rare... ...
A thought that has bugged me for some time. I know that science says that man was formed from the primevel soup, but how did the dinosaur become to inhabit the earth. Surely they were not born... ...
On another thread Naomi insists that they have but won't discuss it any further and won't cite any sort of evidence so I thought I'd open it up for a wider discussion. So what do you think and what... ...
No question - just for information: //Throughout January and February you'll be able to see a number of planets across the sky at night. They include Venus, Jupiter and Saturn, easily visible to... ...
Would it be better to send robots off to Mars and other destinations, rather than sending humans? https://www.bbc.co.uk/news/articles/cy7keddnj31o PS, the link might require a login to BBC Sounds... ...
When I say birds, I dont mean flight attendants... Seriously though, just seen a vid about aircraft colliding with animals (mostly flocks of birds, obviously, but also some with other animals on... ...
Look south west, find the moon, bright object above and to the left: https://earthsky.org/astronomy-essentials/visible-planets-tonight-mars-jupiter-venus-saturn-mercury/ ...
TTT recently posted a thread (based on a youtube video) which besides explaining the above, covered why you cannot exceed the speed of light. In that youtube video, the time dilation effect was... ...
Whenever we talk about aliens etc the limiting factor is always c. The usual suspects never accept that c is the speed limit and cite future invention etc. Anyway here is another very good... ...
I saw a talk by Jean-Pierre some years ago where he described his work on MHD and went on to suggest how to use it for flight propulsion. As his sketches and diagrams appeared on the blackboard,... ...