For nearly 25 years, we thought we knew how the Universe would end. Now, new measurements point to a profoundly different conclusion.
The James Webb Space Telescope may have spotted the birth of some of the earliest galaxies in the universe for the first time ever, new research hints.
Both literally and figuratively, light pervades the world. It banishes darkness, conveys telecommunications signals between continents and makes visible the invisible, from faraway galaxies to the smallest bacterium. Light can also help heat the plasma within ring-shaped devices known as tokamaks as scientists worldwide strive to harness the fusion process to generate green electricity.
A new study reveals the sun’s magnetic field originates closer to the surface, solving a 400-year-old mystery first probed by Galileo and enhancing solar storm forecasting.
An international team of researchers, including Northwestern University engineers, is getting closer to solving a 400-year-old solar mystery that stumped even famed astronomer Galileo Galilei.
Since first observing the sun’s magnetic activity, astronomers have struggled to pinpoint where the process originates. Now, after running a series of complex calculations on a NASA supercomputer, the researchers discovered the magnetic field is generated about 20,000 miles below the sun’s surface.
Researchers have developed techniques to manufacture different types of glass in space, uncovering potential for advancements in optical technology.
Thanks to human ingenuity and zero gravity, we reap important benefits from science in space. Consider smartphones with built-in navigation systems and cameras.
Continue reading “Neutrons Illuminate the Mysteries of Space Glass” »
Advanced observations by the JWST indicate that early galaxies matured faster and were less chaotic, challenging previous theories of galaxy evolution.
New research has revealed that the Universe’s early galaxies were less turbulent and developed more rapidly than previously believed. This research, led by an international team from Durham University, utilized the James Webb Space Telescope (JWST) to find evidence of bar formation when the Universe was only a few billion years old.
Continue reading “Webb Space Telescope Rewrites the Rules of Galactic Evolution” »
From MIT
Not all language model features are linear.
Recent work has proposed the linear representation hypothesis: that language models perform computation by manipulating one-dimensional representations of concepts (“features”) in activation space.
Continue reading “Not All Language Model Features Are Linear” »
The future of space-based UV/optical/IR astronomy requires ever larger telescopes. The highest priority astrophysics targets, including Earth-like exoplanets, first generation stars, and early galaxies, are all extremely faint, which presents an ongoing challenge for current missions and is the opportunity space for next generation telescopes: larger telescopes are the primary way to address this issue.
With mission costs depending strongly on aperture diameter, scaling current space telescope technologies to aperture sizes beyond 10 m does not appear economically viable. Without a breakthrough in scalable technologies for large telescopes, future advances in astrophysics may slow down or even completely stall. Thus, there is a need for cost-effective solutions to scale space telescopes to larger sizes.
The FLUTE project aims to overcome the limitations of current approaches by paving a path towards space observatories with large aperture, unsegmented liquid primary mirrors, suitable for a variety of astronomical applications. Such mirrors would be created in space via a novel approach based on fluidic shaping in microgravity, which has already been successfully demonstrated in a laboratory neutral buoyancy environment, in parabolic microgravity flights, and aboard the International Space Station (ISS).
I found this on NewsBreak: Study: Experiments That Could Show Gravity’s ‘Quantumness’ Are Achievable #Astronomy
Gravity permeates every part of our world, yanking us down to Earth and stringing together the Solar System, galaxies, and Universe through which our planet glides…
Caption :
Researchers studied how temperatures up to 500 degrees Celsius would affect electronic devices made from gallium nitride, a key step in their multiyear research effort to develop electronics that can operate in extremely hot environments, like the surface of Venus.
