#gravitational-lensing tag

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

2 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

1 month 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

fromBig Think

1 month ago

Science

COSMOS-Web unveils JWST's newest gravitational lenses

fromBig Think

5 months ago

OMG science

JWST captures its most extreme gravitational lens ever

fromBig Think

1 month ago

Science

COSMOS-Web unveils JWST's newest gravitational lenses

fromBig Think

5 months ago

OMG science

JWST captures its most extreme gravitational lens ever

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