The universe may contain a staggering 40 quintillion black holes
Astronomers estimate that about 40 quintillion stellar-mass black holes exist within the observable universe, a number written as…
Astronomers discover a water-rich exoplanet that will be swallowed by its star
The number of new exoplanets discovered continues to grow, particularly thanks to observations from various space telescopes. But…
‘Cosmic Glitch’ could explain why gravity acts differently across the Universe
Einstein’s theory of gravity may behave slightly differently across distances of billions of light-years, with gravity appearing about…
The Milky Way may have merged with another galaxy shortly after the Big Bang
ⓘ NASA – Unsplash An artist’s illustration showing two galaxies. Since its formation, the Milky Way has merged…
Extreme X-rays from a magnetar exposes that empty space may not be empty
A highly magnetized neutron star produced unusually polarized X-rays, offering some of the strongest evidence yet that empty…
The Milky Way glows brightly in first-of-its-kind neutrino image
IceCube has produced the first neutrino image of the Milky Way, revealing high-energy particle activity concentrated along our…
Scientists discover remnants of Theia, the planet that collided with Earth 4.5 billion years ago
Two continent-sized structures deep inside Earth may contain remnants of Theia, the ancient planet thought to have collided…
Three supermassive black holes have been discovered in the same galaxy
If black holes fascinate astronomers, it is mainly because of their power, but also because of the many…
Astronomers have observed a wandering black hole shredding a star
ⓘ NASA – Unsplash An illustration showing a star and a galaxy. Astronomers have recently detected a black…
New cosmology model finds that dark matter doesn’t exist
A proposed cosmology model argues that the universe may contain ordinary matter alone, without dark matter or dark…
NASA’s Juno spacecraft finds temperatures surging just below Io’s volcanic surface
NASA’s Juno spacecraft measured heat beneath Io’s surface for the first time, finding temperatures rise sharply within just…
A beam of light can cross the entire universe in no time at all
A photon can cross a billion light-years while accumulating no elapsed time along its path.Special relativity links space…