Medicine & TechnologyScientists propose two Big Bangs: one for ordinary matter and another delayed for dark matter. This testable hypothesis for the universe's origins awaits confirmation or refutation. Read the article to learn more details.
Some exoplanets shrink due to core-powered mass loss, which explains the gap why there's not planet between the sizes of sub-Neptune and super-Earth. Continue reading to learn more.
Leonid meteor shower peaks between Friday and Saturday with 15 fireballs an hour. NASA recommends dark skies, advising viewers to escape city lights for optimal visibility. Continue reading for more information.
Many species on Earth depend on oxygen, and extreme deoxygenation could end them, including humans, due to suffocation. Continue reading to learn more.
For the first time, ESA's ExoMars Trace Gas Orbiter identifies green oxygen glow in Mars' atmosphere, a groundbreaking discovery. Check it out in this article.
A new study concluded that the rocket body that slammed the moon last year was from China's uncrewed Chang'e 5-T1 mission. Continue reading to learn more.
Astronomers report that dozens of rogue stars were found to be hurtling out of the Milky Way galaxy. Read the article to find out more about this phenomenon.
A wayward astronaut's tool bag, released during a spacewalk, becomes an unexpected celestial sight for night sky enthusiasts. Continue reading for more details.