Gravity isn't limited by distance, it's strength is determined by the ratio of surface area of the sphere at the point it's measured/strength at source, so the further away it gets the weaker it is, but it never reaches zero.
Now, the astronomy part....
- Thread starter Aeorath
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Gravity isn't limited by distance, it's strength is determined by the ratio of surface area of the sphere at the point it's measured/strength at source, so the further away it gets the weaker it is, but it never reaches zero.
I was going to tweet Prof Rudy Rucker, he’s real good at explaining this stuff.This might provide some answers.
Einstein's Theory of General Relativity
Here we explore what the theory of general relativity is and how it affects space-time.www.space.com
Please do that, I would this thread to contain interesting things we can find about astronomy in general. I am no astronomer myself, I am merely dabbling in it, but everything helps.
So far I liked Levesque a little more than Kaspi in presenting things; it's not just about having the information, it's also about disseminating it, especially for people who are trying to grasp some concepts (like me). Many times I had to pause the presentations and search for additional explanations on some of the things presented, but I don't mind that.
So if you have something related to astronomy in general, or anything else scientific in particular, drop it in here. Let's keep this alive.
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Alright, why have we not already solved both energy and climate crises with solar panels in between Earth an Sun (or at surface of the Moon, no atmosphere, lots of energy).
I understood energy could be transformed from space or even from the Moon surface through some kind of beam directly to Earth, or through links orbiting it.
Also, more solar panels surface area we can get as close to the Sun as possible, more "shadows" it would create on Earth, preventing some portion of heat radiation reaching Earth and perhaps slow down warming of the climate (with also energy production aspect).
We could also build a telescope satellite using our Sun as a lens, to see at 360 degrees angle around Sun even at the surface of planets thousands of LY away, with tech we have already.
Why on earth we have not done that for SETI by now?
Jocelyn Bell Burnell, who discovered the first pulsar, as a postgraduate student back in 1967.
Source: https://www.youtube.com/watch?v=-335gUOvdhA
Astronomers have spotted a supermassive black hole speeding through space, and they don't know why
The enormous force responsible for the black hole's motion could be from a past collision, or from an unseen neighbor
Wow! This incredible image of the Milky Way took 12 years to create
Finnish astrophotographer J-P Metsavainio spent 1,250 hours over the course of about 12 years creating a single image that reveals the magnificent beauty of the entire Milky Way galaxy.
NASA’s Sonification Project Lets You Listen to Stars and Black Holes
When we think about objects in space, like galaxies and black holes, our only frame of reference are the images we’ve seen, taken by the Hubble Space Telescope and similar instruments. Now, thanks to NASA’s new data sonification series, we can translate data signals of these objects into audio.
www.reviewgeek.com
Intriguing Warp Drive Research Dashes Faster Than Light Travel Dreams – But Reveals Stranger Possibilities
In 1994, physicist Miguel Alcubierre proposed a radical technology that would allow faster-than-light travel: the warp drive, a hypothetical way to skirt around the universe’s ultimate speed limit by bending the fabric of reality. It was an intriguing idea – even NASA has been researching it at t
scitechdaily.com
During long voyages through the dark confines of space, I ran into this article - pretty mind bending stuff about the black holes.
I will also drop this explained image of a black hole visualization by Jeremy Schnittman, the NASA astrophysicist who realized the visualization of a binary black hole system in the article above.
Black hole by Schnittman
Hypnotic New NASA Visualization Probes the Light-Bending Dance of Binary Black Holes
A pair of orbiting black holes millions of times the Sun’s mass perform a hypnotic pas de deux in a new NASA visualization. The movie traces how the black holes distort and redirect light emanating from the maelstrom of hot gas – called an accretion disk – that surrounds each one. Viewed from nea
scitechdaily.com
I will also drop this explained image of a black hole visualization by Jeremy Schnittman, the NASA astrophysicist who realized the visualization of a binary black hole system in the article above.
Black hole by Schnittman
Warp Drive research.
sciencex.com
New warp drive research dashes faster than light travel dreams – but reveals stranger possibilities
In 1994, physicist Miguel Alcubierre proposed a radical technology that would allow faster than light travel: the warp drive, a hypothetical way to skirt around the universe's ultimate speed limit by bending the fabric of reality.
Yes, I was reading that article about NICER yesterday, good catch, mate!
I was looking up whether the Ingenuity Drone was a success and saw it at the top of the page.
Also, amazing pictures here:
Astronomy Picture of the Day
A different astronomy and space science related image is featured each day, along with a brief explanation.
apod.nasa.gov
Hubble Snaps a Stunning Close-Up of a Magnificent Spiral Galaxy
This image shows a close-up portrait of the magnificent spiral galaxy NGC 4603, which lies over 100 million light-years away in the constellation of Centaurus (The Centaur). Bright bands of blue young stars make up the arms of this galaxy, which wind lazily outwards from the luminous core. The intri
scitechdaily.com
And NGC 3344 in this video.