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Hace 19 horas · The Swift BAT all-sky survey successfully detected hard X-rays coming from a region centered 6 arcseconds away from the galaxy center. The emission above 25 keV was later found to be originating from a single source named 3XMM J004232.1+411314 , and identified as a binary system where a compact object (a neutron star or a black hole) accretes matter from a star.
Hace 19 horas · When the Sun is very low in the sky, atmospheric scattering renders the Sun yellow, red, orange, or magenta, and in rare occasions even green or blue. Despite its typical whiteness (white sunrays, white ambient light, white illumination of the Moon, etc.), some cultures mentally picture the Sun as yellow and some even red; the reasons for this are cultural and exact ones are the subject of ...
Hace 19 horas · A supernova ( pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or black hole, or is completely ...
Hace 19 horas · At least 16 people were killed in a Russian missile strike on a DIY store in Kharkiv city this weekend - read about this in our overview of what's happening in Ukraine below, and we'll be back ...
Hace 19 horas · Events leading to World War I. The assassination of Archduke Franz Ferdinand [a] was one of the key events that led to World War I. Archduke Franz Ferdinand of Austria, heir presumptive to the Austro-Hungarian throne, and his wife, Sophie, Duchess of Hohenberg, were assassinated on 28 June 1914 by Bosnian Serb student Gavrilo Princip.
Hace 19 horas · A homeowner has told of his shock after watching a suspected meteorite burst through the sky and land next to his property. Dan Charlton was standing in his back garden in the early hours of the morning when he saw a green light and heard a “whoosh” as the object plummeted to earth. And the next day, he discovered a small charred rock lying in a street close to his home, in Wakefield, West ...
Hace 19 horas · 游戏特色. 1. 创新玩法：hole.io以黑洞吞噬为核心玩法，玩家需要通过控制黑洞的移动和吞噬，挑战在规定时间内获取更高的分数。. 2. 联机对战：游戏支持联机对战，玩家可以与好友或其他玩家进行实时竞技，比拼谁的黑洞能够吞噬更多的物体和获得更高的分数 ...
