[Space Bites+] Sun’s Pole Revealed // Sun Shade vs Climate Change // Source of Cosmic Rays
Have we finally found the source of ultra-high energy cosmic rays? Our first look at the Sun’s south pole, New Glenn slips again, what kind of damage would rockets do to the ozone layer? And in Space Bites+, a pair of quasars that dominated Cosmic Noon.
Watch the video here (with no ads) or on YouTube: https://youtu.be/_8EZb6NOauo
Comments (12)
Random question. With the atmospheric pressure on Venus being so much higher than Earth, when it was volcanically active, would the volcanoes have behaved differently under all that pressure? Would lava have flowed differently?
I've read something along those lines in articles about volcanism on Venus, sorry I can't give you a specific link but worth doing a search on Scientific American for a start.
The $37 trillion federal deficit is unsustainable. It is forcing painful cuts.
Makes sense to not increase the Federal debt then.
I'm glad you spoke about environmental issues with the space industry now it's growing so much. But, as I understand it, this story is only about the launches. Are there studies about the disintegration of satellites when they are decommissioned, especially when mega-constellation promise a several order of magnitude growth of these ?
It's a minor concern right now, especially with specific particles hitting the atmosphere like aluminum. But the amounts are extremely low right now compared to the 100 tons of material that hit the Earth every day. But another thing to keep an eye on.
Hi Fraser Should not we hold that sunshade in position with rocket engines? It would function as a giant solar sail, wouldn't it?
You'd take that into account, you'd make your position be balanced when you include the light pressure from the Sun.
You Max Headroomed on "For Now" at the end...Oh crap! Fraser is AI and was eaten by The Algorithm!
"for now..." did you mean to end with that? Still think you should have an image at the end that isn't your face frozen in a random position.
I watched your fantastic interview with Dr. Cara Battersby and a question popped into my brain. I know there are many variables, but in general, how long does it take for a star to form? Thanks for all you do. JD
It takes a few million years.