Apr 13, 2023 02:19 PM
New map of the universe’s cosmic growth supports Einstein’s theory of gravity
https://www.eurekalert.org/news-releases/985397
INTRO: For millennia, humans have been fascinated by the mysteries of the cosmos.
Unlike ancient philosophers imagining the universe’s origins, modern cosmologists use quantitative tools to gain insights into the universe’s evolution and structure. Modern cosmology dates back to the early 20th century, with the development of Albert Einstein’s theory of general relativity.
Now, researchers from the Atacama Cosmology Telescope (ACT) collaboration have created a groundbreaking new image that reveals the most detailed map of dark matter distributed across a quarter of the entire sky, extending deep into the cosmos. What’s more, it confirms Einstein’s theory of how massive structures grow and bend light, over the entire 14-billion-year life span of the universe.
“We have mapped the invisible dark matter across the sky to the largest distances, and clearly see features of this invisible world that are hundreds of millions of light-years across, says Blake Sherwin, professor of cosmology at the University of Cambridge, where he leads a group of ACT researchers. “It looks just as our theories predict.” (MORE - details)
ORIGINAL PRESS RELEASE (temporary): https://www.princeton.edu/news/2023/04/1...ry-gravity
New agreement will help researchers study metal worlds of M-type asteroids
https://www.eurekalert.org/news-releases/985825
INTRO: A University of Central Florida researcher will be using the newly constructed Two-meter Twin Telescope (TTT) in the Canary Islands, Spain, to study metal-rich M-type asteroids. The work can inform the study of asteroids like 16 Psyche, an M-type, or metal, asteroid NASA is launching a mission in October 2023 to visit.
The M-type asteroids offer both high concentrations of metals that could be harnessed to make structures in space as well as clues to the formation of asteroids and planets in the solar system.
“For many years, M-type asteroids were thought to be the cores of planetesimals, or small planets, stripped of their silicates and organic mantles by collisions in the early solar system,” says Noemí Pinilla-Alonso, a planetary scientist with UCF’s Florida Space Institute who is leading the research.
“A more recent theory, based on detailed studies of the largest M-type asteroid, 16 Psyche, argues that these bodies formed much closer to the sun, were stripped of their thin crusts while still partially molten, and later dynamically moved to their current location.”
The M-type asteroids are also considered the probable source of iron meteorites... (MORE - details)
ORIGINAL PRESS RELEASE (temporary): https://www.ucf.edu/news/new-ucf-agreeme...formation/
https://www.eurekalert.org/news-releases/985397
INTRO: For millennia, humans have been fascinated by the mysteries of the cosmos.
Unlike ancient philosophers imagining the universe’s origins, modern cosmologists use quantitative tools to gain insights into the universe’s evolution and structure. Modern cosmology dates back to the early 20th century, with the development of Albert Einstein’s theory of general relativity.
Now, researchers from the Atacama Cosmology Telescope (ACT) collaboration have created a groundbreaking new image that reveals the most detailed map of dark matter distributed across a quarter of the entire sky, extending deep into the cosmos. What’s more, it confirms Einstein’s theory of how massive structures grow and bend light, over the entire 14-billion-year life span of the universe.
“We have mapped the invisible dark matter across the sky to the largest distances, and clearly see features of this invisible world that are hundreds of millions of light-years across, says Blake Sherwin, professor of cosmology at the University of Cambridge, where he leads a group of ACT researchers. “It looks just as our theories predict.” (MORE - details)
ORIGINAL PRESS RELEASE (temporary): https://www.princeton.edu/news/2023/04/1...ry-gravity
New agreement will help researchers study metal worlds of M-type asteroids
https://www.eurekalert.org/news-releases/985825
INTRO: A University of Central Florida researcher will be using the newly constructed Two-meter Twin Telescope (TTT) in the Canary Islands, Spain, to study metal-rich M-type asteroids. The work can inform the study of asteroids like 16 Psyche, an M-type, or metal, asteroid NASA is launching a mission in October 2023 to visit.
The M-type asteroids offer both high concentrations of metals that could be harnessed to make structures in space as well as clues to the formation of asteroids and planets in the solar system.
“For many years, M-type asteroids were thought to be the cores of planetesimals, or small planets, stripped of their silicates and organic mantles by collisions in the early solar system,” says Noemí Pinilla-Alonso, a planetary scientist with UCF’s Florida Space Institute who is leading the research.
“A more recent theory, based on detailed studies of the largest M-type asteroid, 16 Psyche, argues that these bodies formed much closer to the sun, were stripped of their thin crusts while still partially molten, and later dynamically moved to their current location.”
The M-type asteroids are also considered the probable source of iron meteorites... (MORE - details)
ORIGINAL PRESS RELEASE (temporary): https://www.ucf.edu/news/new-ucf-agreeme...formation/