来自MSN2 个月
A Mysterious Explosion of Color in Animals Has Lasted 100 Million Years
In a new study, US researchers shed light on what they call an "explosion" of animal color signals over the past 100 million years – with novel insights about the timing and possible triggers of ...
Space.com22 天
Hubble Telescope sees rare supernova explosion as a violent 'pale blue dot' (image)
about 650 million light-years away from Earth. A newly released Hubble pic shows the galaxy LEDA 22057, where the supernova explosion occurred. The spiral galaxy's swirling mass centers around an ...