Biggest Dark Matter Detected

According to wikipedia, Dark matter is a hypothetical form of matter of unknown composition that does not emit or reflect enough electromagnetic radiation to be observed directly, but whose presence can be inferred from gravitational effects on visible matter. Structures larger than galaxies, as well as Big Bang cosmology, dark matter accounts for the vast majority of mass in the observable universe. Now a new giant sheets of dark matter detected:

The most colossal structures in the universe have been detected by astronomers who tuned into how the structures subtly bend galactic light. The newfound filaments and sheets of dark matter form a gigantic features stretching across more than 270 million light-years of space–three times larger than any other known structure and 2,000 times the size of our own galaxy. Because the dark matter, by definition, is invisible to telescopes, the only way to detect it on such grand scales is by surveying huge numbers of distant galaxies and working out how their images, as seen from telescopes, are being weakly tweaked and distorted by any dark matter structures in intervening space.

=> Giant Sheets of Dark Matter Detected

Hundreds of undiscovered worlds in outer parts of our Solar System

This is really a good news. A galaxy is a massive, gravitationally bound system consisting of stars, an interstellar medium of gas and dust, and dark matter. Our Sun and Earth are part of the Milky Way galaxy. Basically the Sun is one of the stars in the Milky Way galaxy; the Solar System includes the Earth. Now scientist suggests more than half the Sun-like stars in the Milky Way could have similar planetary systems just like our solar system. In other words there may be many more worlds in our galaxy. From BBC news site:

Rocky planets, possibly with conditions suitable for life, may be more common than previously thought in our galaxy, a study has found.

New evidence suggests more than half the Sun-like stars in the Milky Way could have similar planetary systems.

There may also be hundreds of undiscovered worlds in outer parts of our Solar System, astronomers believe.

Future studies of such worlds will radically alter our understanding of how planets are formed, they say.

Planet-hunters set for big bounty