Scientists have discovered that the Milky Way’s diffuse outer halo is devoid of any unusually large black holes. The discovery could spell bad news for theories that suggest dark matter, the universe’s most mysterious “stuff,” is composed of primordial black holes that formed in the early moments after the Big Bang. Dark matter is confusing… Read More »
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific breakthroughs and more. For nearly 50 years, the scientific community has been grappling with an important problem: There is not enough visible matter in the universe. All the matter we can see—stars, planets, cosmic dust, and everything in… Read More »
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. For nearly 50 years, the scientific community has been grappling with an important problem: There is not enough visible matter in the universe. All the matter we can see—stars, planets, cosmic dust, and everything in… Read More »
The search for tiny black holes, missing from the Big Bang, may be about to heat up. Just as the trail of such tiny black holes appears to have cooled, an international team of scientists has found clues in quantum physics that could reopen the case. One reason why the hunt for these so-called primordial… Read More »
Black hole week is in full swing, and to celebrate, NASA has revealed how its next major astronomy instrument, the Nancy Grace Roman Space Telescope, will hunt for tiny black holes dating back to the Big Bang. When we think of black holes, we tend to imagine huge cosmic monsters, such as stellar-mass black holes… Read More »
Given that primordial black holes are suspects of dark matter, their excuse may be falling apart. Small black holes formed seconds after the birth of the universe may survive longer than expected, reigniting suspicion that primordial black holes could explain dark matter, the universe’s most mysterious substance. Dark matter currently represents one of the most… Read More »