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fromFuturism
4 days ago

Astronomers Spot Huge Microwave Laser Blasting Into Space

This system is truly extraordinary. We're seeing the radio equivalent of a laser halfway across the universe. Fundamentally, masers and lasers are focused beams of light in the same frequency. In the realm of astrophysics, these can arise from clouds of dust being excited into a higher energy state from the light emitted by other sources, like stars and black holes.
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Science
fromwww.scientificamerican.com
1 month ago

AI reveals 800 never-before-seen cosmic anomalies' in old Hubble images

An ESA-developed AI scanned nearly 100 million Hubble image cutouts and discovered about 800 previously undescribed cosmic anomalies within days.
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fromBig Think
2 months ago

Brightest-ever lensed supernova reveals astronomy's coming revolution

Multiply imaged, time-varying supernovae and gravitational lenses provide time delays that enable measurements of cosmic distances and the Universe's expansion rate.
Science
fromBig Think
2 months 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
2 months 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.
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Science
fromwww.scientificamerican.com
3 months 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.
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fromWIRED
5 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.
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frombigthink.com
9 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.
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fromFuturism
10 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.
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fromMail Online
10 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.
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