Dark matter is one of the greatest cosmic mysteries of our time, an invisible, intangible material thought to make up five-sixths of all matter in the universe. Scientists currently think it is composed of a new type of particle, one that interacts normally with gravity but only very weakly with all the other known forces of the universe. As such, dark matter is detectable only via the gravitational pull it generates.
According to study many wandering alien worlds, which were ejected from the solar systems in which they formed, likely find new homes with different suns. The finding could explain why some alien planets orbit extremely far from their stars.Study lead author Hagai Perets, of the Harvard-Smithsonian Center for Astrophysics, and co-author Thijs Kouwenhoven of China’s Peking University simulated the evolution of young star clusters containing about as many free-floating planets as stars.
Samsung Electronics is expected to show the next flagship Galaxy smartphone at an event in London on May 3. The design of the phone and its hardware specification are still unknown, but the plethora of high-end smartphones launched at Mobile World Congress give some hints. Newcomers like the HTC One X, which has already gone on sale, the Optimus 4X HD and the Huawei Ascend D Quad all have quad-core processors and screens with a 1280-by-720 pixel resolution.
NASA/ESA Hubble Space Telescope has captured the brilliance of the compact center of Messier 70, a globular cluster. This picture was obtained with the Wide Field Camera of Hubble’s Advanced Camera for Surveys. The field of view is around 3.3 by 3.3 arcminutes. Quarters are always tight in globular clusters, where the mutual hold of gravity binds together hundreds of thousands of stars in a small region of space. Messier 70 has undergone what is known as a core collapse.
This image, which shows NGC 4980, is composed of exposures taken in visible and infrared light by Hubble’s Advanced Camera for Surveys. The image is approximately 3.3 by 1.5 arcminutes in size.NGC 4980 is a spiral galaxy in the southern constellation of Hydra. The shape of NGC 4980 appears slightly deformed, something which is often a sign of recent tidal interactions with another galaxy. In this galaxy’s case, however, this appears not to be the case as there are no other galaxies in its immediate vicinity.
New Infrared and X-ray observations from two space telescopes strengthen the view that the galaxy may have been created by the cataclysmic collision of two older galaxies. The infrared light was captured by the European Space Agency’s Herschel Space Observatory. The X-ray observations were made by the European Space Agency’s XMM-Newton space telescope. Centaurus A is the closest giant elliptical galaxy to Earth, at a distance of around 12 million light-years.
New study finds that supernova explosions and the jets of a monstrous black hole are scattering a galaxy’s star-making gas like a cosmic leaf blower. The findings, which relied on ultraviolet observations from NASA’s Galaxy Evolution Explorer and a host of other instruments, fill an important gap in the current understanding of galactic evolution. It has long been known that gas-rich spiral galaxies like our oun smash together to create elliptical galaxies such as the one observed in the study.
Astronomers have discovered a planetary system that formed nearly 13 billion years ago, suggesting the early universe harbored more planets than has been thought. The system consists of a star called HIP 11952 and two Jupiter-like alien planets. It is just 375 light-years from Earth, in the constellation Cetus (the Whale). The planets are likely the oldest yet found, at 12.8 billion years old, they’re just 900 million years younger than the universe itself, according to the commonly accepted Big Bang theory. HIP 11952 contains very little other than hydrogen and helium.
An international team of astronomers snapped a new photo of our Milky Way galaxy. The new picture, which was released on March 28, combines infrared images of the Milky Way taken during sky surveys by two different instruments, the UK Infrared Telescope in Hawaii and the VISTA telescope in Chile. As said scientists the photo is part of a 10-year project that is gathering mountains of data to help guide future research.