#gravitational-lensing

[ follow ]
#astronomy #james-webb-space-telescope #dark-matter #jwst #hubble-tension #hubble-constant
Science
fromBig Think
3 days ago

Gravitational lensing is amazing, but won't solve the Hubble tension

Two independent measurement methods produce conflicting expansion rates (67 vs 73 km/s/Mpc), creating the Hubble tension that lensing methods alone cannot resolve.
fromThe Atlantic
6 days ago

Day 7 of the 2025 Space Telescope Advent Calendar: A Warped View Through an Einstein Ring

ESA / Webb, NASA & CSA, G. Mahler Day 7 of the 2025 Space Telescope Advent Calendar: A Warped View Through an Einstein Ring. You are seeing two galaxies here, one in front of the other. The more distant spiral galaxy appears warped and distorted due to the gravitational lensing occurring around a massive, much closer galaxy, which is part of galaxy cluster SMACSJ0028.2-7537.
Science
fromThe Atlantic
1 week ago

Day 3 of the 2025 Space Telescope Advent Calendar: A Galactic Cluster

More than 100 galaxies can be seen in Galaxy Cluster Abell 209, situated about 2.8 billion light-years away. Though they look close to one another, these galaxies are still separated by millions of light-years. Their combined mass manages to warp and magnify some even more-distant galaxies through a process called gravitational lensing. Lensed galaxies here appear stretched or streaky toward the center.
OMG science
Science
fromwww.scientificamerican.com
3 weeks ago

The James Webb Telescope May Have Seen the First Stars in the Universe

JWST observations of galaxy LAP1-B show strong helium and almost no heavy elements, making it the leading candidate for hosting Population III (first-generation) stars.
Science
fromFuturism
2 months ago

Astronomers Detect Mysterious Dark Object in Distant Galaxy

A low-mass object of more than one million solar masses was detected 10 billion light years away via gravitational lensing, providing crucial clues about dark matter.
#jwst
more#jwst
Science
fromWIRED
2 months ago

A Newly Discovered 'Einstein's Cross' Reveals the Existence of a Giant Dark Matter Halo

Gravitational lensing magnifies HerS-3, revealing a distant starburst galaxy with a rotating disk and requiring a central dark matter halo to explain its Einstein cross.
OMG science
frombigthink.com
6 months ago

10 space pictures whose appearances will deceive you

Gravitational lensing creates visual illusions, leading to misconceptions about cosmic distances and relationships between galaxies.
OMG science
fromFuturism
7 months ago

Scientists Intrigued by Huge Galactic "Bridge" of Dark Matter

The Perseus cluster may not be as stable as previously thought, indicating signs of a significant merger through new dark matter evidence.
OMG science
fromMail Online
7 months ago

Scientists BAFFLED after spotting a lone black hole drifting in space

A lone black hole without orbiting stars has been discovered in the Milky Way, revealing new insights into black hole detection.
[ Load more ]