Despite how little we know about dark matter, we can tell when it’s there, from the way it impacts galaxies and causes strange movements that don’t fit the laws of gravity. Which means we can also tell when it’s not there. For the first time, astronomers using the Dragonfly Telephoto Array in New Mexico (and eventually the Hubble Space Telescope) discovered a distant galaxy […]
An international team of researchers has detected gas containing oxygen in a galaxy 13.1 billion light years from Earth, providing a glimpse into what the universe was like in ancient times, reports a new study published in this week’s Science. The universe we know today is abundant with different chemical elements. But at the beginning […]
One is the loneliest number, especially when you are a single moon circling the planet full of humans. But let’s not lose hope here because NASA just announced that there might be a second moon come to keep you company. This newly discovered moon is smaller than our moon and goes around the Earth astonishingly […]
NASA just discovered a new lonely planet with no host star. To make sense of space, we tend to group things up. For example, our planet is a part of the Solar System, which is part of the Milky Way galaxy, which sits in the Laniakea region of the Universe, and so on. These groups […]
It seems intuitive that an opaque material should contain more stuff than a more translucent substance. For example, muddier water has more suspended particles of dirt in it than clearer water. Likewise, you might think that, in the rings of Saturn, more opaque areas contain a greater concentration of material than places where the rings seem more transparent.
But this intuition does not always apply, according to a recent study of the rings using data from NASA’s Cassini mission. In their analysis, scientists found surprisingly little correlation between how dense a ring might appear to be — in terms of its opacity and reflectiveness — and the amount of material it contains.
Excuse you. Scientists have discovered evidence of a powerful galactic blast produced by a comparatively nearby supermassive black hole located some 26 million light-years away from Earth. The black hole, centred in a small galaxy called NGC 5195, is the nearest of its kind to Earth undergoing such violent outbursts, which the researchers have likened […]
Stellar explosions known as type Ia supernovae could be triggered by dark matter. So says a physicist in the US, who has worked out how certain burnt-out stars can explode even though they lack the mass to generate fusion reactions. According to the new research, the stars ignite because they accumulate so-called asymmetric dark matter, […]