Search results: black hole

Gravitational waves from binary black holes milder than thought Black holes rotating around each other on a collision course create milder gravitational waves than previously thought, a study published online in Science suggests. Scientists studying pulsars with super-sensitive equipment for 11 years looking for evidence of gravitational waves coming from binary black holes haven’t found […]

A predicted collision between pair of black holes The prediction late last year of a collision between a pair of supermassive black holes in a galaxy about 3.5 billion light-years from Earth has gotten support from a new study by scientists at Columbia University. Last year, scientists noticed a flickering pulse from the galaxy’s quasar […]

Polar winds found on Saturn’s moon Titan Titan, one of Saturn’s moons, has polar winds that take gases from its atmosphere and throw them into space, very much like Earth’s polar winds, according to data collected by the Cassini space probe, which has been studying Saturn and its moons since 2004. Space.com Supermassive black hole’s […]

Blobs ejected by black hole collide like billiard balls in Hubble images A black hole in the galaxy NGC 3862 has ejected two jets of plasma that knocked into each other like billiard balls, all caught in images by the Hubble Space Telescope over the course of 20 years. BBC Graphene discovery could lead to […]

Neanderthals interbred with ancient Asians at 2 points in history Neanderthals interbred with the ancestors of Asians twice in ancient history, according to a pair of studies published in the American Journal of Human Genetics. The studies approached the same question from different directions, but came to the same conclusion, looking at why Asians have […]

Although pretty much unknown for the public audience, Supergravity theories play an important role in modern Theoretical Physics, specially for the particle physics and (Super)String Theory communities . Loosely speaking, Supergravity is a theory that describes gravity along with other fundamental particles and interactions in such a way that the whole structure is symmetric under […]

Hummingbird flight similar to that of insects Scientists recorded a hummingbird as it hovered then created a 3D model to assess the airflow patterns created by the flapping of its wings. While other birds use the downstroke of their wings to fly, hummingbirds use upstrokes and downstrokes to create small vortices that merge into one […]

How far are the stars we see every night? This was possibly one of the first questions early astronomers asked themselves and it is still among the most fundamental problems for present day astrophysics. In some sense, astronomers do build the Universe as the observing methods allow them to place neighboring stars, distant galaxies or […]

Glowing sharks living in dark depths evolve special vision Some species of bioluminescent sharks that live in the darkest depths of the ocean have eyes that have evolved to detect complex patterns of light to communicate with each other, locate prey or hide themselves. Researchers found that the eyes of bioluminescent sharks provide better resolution […]

Common traits in tame animals may be due to neural crest changes Genetic changes that may affect a group of embryonic stem cells known as the neural crest may produce a specific set of features in animals bred for tameness. Common features and behaviors in domesticated animals include patches of white fur, floppy ears, youthful […]