当行星碰撞时会发生什么
This artist’s concept illustrates a catastrophic collision between two rocky exoplanets in the planetary system BD +20 307, t…
This artist’s concept illustrates a catastrophic collision between two rocky exoplanets in the planetary system BD +20 307, t…
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…
TOI 700系统的三颗行星围绕着一颗小而冷的M矮星运行。TOI 700d是TESS发现的第一个地球大小的宜居带。 影像来源:NASA’s Goddard Space Flight Center NASA的凌日系外行星勘测卫星(TESS)…
欧米茄(Omega)或天鹅星云是我们银河系中最明亮,质量最大的恒星形成区之一,其形状类似于我们今天看到的天鹅脖子。新的观测表明,它的区域是在多个恒星诞生时代分开形成的。来自平流层红外天文观测台(SOFIA)的新图像正在帮助科学家记录这个经过深入研究的…
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 …
This image from the NASA/ESA Hubble Space Telescope shows IC 2051, a galaxy in the southern constellation of Mensa (the Table…