哈勃太空望远镜拍摄到一个单臂星系
NGC 4618 was discovered on April 9, 1787, by the German-British astronomer William Herschel, who also discovered Uranus in 17…
NGC 4618 was discovered on April 9, 1787, by the German-British astronomer William Herschel, who also discovered Uranus in 17…
The barred spiral galaxy NGC 3887, seen here as viewed by the Wide Field Camera 3 aboard the NASA/ESA Hubble Space Telescope,…
This bright, somewhat blob-like object — seen in this image taken by the NASA/ESA Hubble Space Telescope — is a galaxy named …
Credit:NASA 天文学家一般在恒星的“宜居带”,也被称为“金凤花区域”(Goldilocks zone)内的行星上寻找地外生命。“宜居带”指一颗恒星周围的一定距离范围,在这一范围内温度适宜使水能够以液态形式存在于行星表面,从而可以孕育生命。 …
天文学家们利用NASA的哈勃太空望远镜和一项新的观测技术,天文学家发现暗物质形成的团块比以前所知的要小得多。这个结果证实了被广泛接受的“冷暗物质”理论的一个基本预测。 根据这个理论,所有的星系都形成并嵌入在暗物质云中。暗物质本身由缓慢移动的或“冷”粒…
This smattering of celestial sequins is a spiral galaxy named NGC 4455, located in the northern constellation of Coma Berenic…
A galaxy about 23 million light years away is the site of impressive, ongoing fireworks. Rather than paper, powder and fire, …
During the 18th century, French astronomer Charles Messier compiled a list of over 100 cosmic objects that might fool fellow …