Astronomy
Red Dwarfs Are Too Dim To Generate Complex Life
New research shows that complex life is unlikely to ever exist around cool, dim red dwarfs. About 33% of the Milky Way's stars are late M dwarfs, which are the smallest, coolest stars, and are the easiest stars to detect Earth-like planets around. The stars aren't bright enough for photosynthetic organisms to create a Great Oxygenation Event, which led to complex animal life here on Earth.
These Gravitationally Lensed Supernovae Could Resolve The Hubble Tension
Researchers used the JWST to find a pair of strong gravitationally lensed Supernovae. They exploded billions of years ago, and their light is just reaching us now. Because of the lensing, we'll see multiple images of them, separated by years or decades. This could reveal the expansion rate of the Universe, and provide a solution to the Hubble Tension.
How Dark Asteroids Die
Back in the earlier days of the internet, there was a viral video from a creator called Bill Wurtz called “the history of the entire world, i guess” which spawned a number of memorable memes, some of which are still in use to this day. One of those was a clip from the video where Wurtz states “The Sun is a deadly laser.” Apparently, that was more true than even he knew, as a new paper from Georgios Tsirvouils of the Luleå University of Technology in Sweden and his co-authors have shown experimental evidence that the Sun’s laser-like radiation is likely responsible for the death of a vast majority of closely-orbiting asteroids.
Hubble Spies Stellar Blast Setting Clouds Ablaze
Fossil may solve mystery of what one of the weirdest-ever animals ate
Fossil may solve mystery of what one of the weirdest-ever animals ate
6 ways to help your children have a healthy relationship with food
6 ways to help your children have a healthy relationship with food
Unmasking the Sun’s Hidden Gamma Ray Factory
Scientists have finally identified where some of the most powerful radiation bursts from solar flares originate, solving a mystery that has puzzled solar physicists for decades. Researchers at the New Jersey Institute of Technology traced intense gamma rays back to a previously unknown population of particles supercharged to millions of electron volts in the Sun’s atmosphere, revealing the mechanism behind these strange signals.
A New Atlas of the Milky Way’s Ghost Particles
Every second, a trillion ghost particles stream through your body unnoticed, invisible messengers carrying secrets from the hearts of distant stars. Astrophysicists at the University of Copenhagen have now mapped exactly where these neutrinos originate across our Milky Way Galaxy and how many reach Earth, creating the most comprehensive picture yet of these elusive particles.
All major AI models risk encouraging dangerous science experiments
All major AI models risk encouraging dangerous science experiments
Two New Exoplanets And The Need For New Habitable Zone Definitions
How solid is our understanding of exoplanet habitability? Are the ideas of an Optimistic Habitable Zone and a Conservative Habitable Zone sufficient to advance our understanding? New research introduces an expanded exoplanet 'temperate zone,' highlighting planets that are amenable to atmospheric study by the JWST.
