mrt 222012
 
Dawn sees new surface features on giant asteroid

Enlarge In this image from NASA’s Dawn spacecraft, bright material extends out from the crater Canuleia on Vesta. Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/UMD NASA’s Dawn spacecraft has revealed unexpected details on the surface of the giant asteroid Vesta. New images and data highlight the diversity of Vesta’s surface and reveal unusual geologic features, some of which were [continue reading]

mrt 222012
 
Messier 95 with Supernova

Barred spiral galaxy Messier 95  (NGC 3351) is about 75,000 light-years across, comparable in size to our own Milky Way and one of the larger galaxies of the Leo I galaxy group. In fact, it is part of a not quite so famous trio of Leo galaxies with neighbors M96 and M105, about 38 million light-years distant. In this sharp [continue reading]

mrt 212012
 
Astronomers discover 'emerald-cut' galaxy

An international team of astronomers has discovered a rare square galaxy with a striking resemblance to an emerald cut diamond.The astronomers – from Australia, Germany, Switzerland and Finland – discovered the rectangular shaped galaxy within a group of 250 galaxies some 70 million light years away.”In the Universe around us, most galaxies exist in one [continue reading]

mrt 202012
 
Some Orbits More Popular Than Others in Solar Systems

In young solar systems emerging around baby stars, some orbits are more popular than others, resulting in “planet pile-ups” and “planet deserts.” Computer simulations suggest high-energy radiation from baby sun-like stars are likely to create gaps in young solar systems, leading to pile-ups of planets in certain orbits. Credit: NASA/JPL-Caltech   Computer simulations have revealed [continue reading]

mrt 172012
 
Large Binocular Telescope brings  the Universe into Sharper Focus

World’s Most Powerful Optical Telescope Uses New Technology to Make Groundbreaking Discoveries. Astronomers from the Large Binocular Telescope (LBT) released the first series of scientific results showing its best-in-the-world performance in canceling the blur of the Earth’s atmosphere. Included in these first findings are previously impossible discoveries about extrasolar planets and their environments and new insights into [continue reading]

mrt 172012
 
Astronomers Using NASA's Hubble Discover Quasars Acting as Gravitational Lenses

Astronomers using NASA’s Hubble Space Telescope have found several examples of galaxies containing quasars, which act as gravitational lenses, amplifying and distorting images of galaxies aligned behind them. Quasars are among the brightest objects in the universe, far outshining the total starlight of their host galaxies. Quasars are powered by supermassive black holes. Image Credit: [continue reading]