A phenomenon where we can see a long tail in the sky. What is it? A. Comet B. Meteor C. Asteroid 相关知识点: 试题来源: 解析 A。这是彗星现象,彗星有长尾巴。选项 B 流星瞬间出现一道条纹。选项 C 小行星通常没有长尾巴。反馈 收藏 ...
Unidentified interstellar visitor 'Oumuamua might be a comet that lost its tail after being hit by the sun's cosmic rays.
an anti-tail is formed from fresh dust blown back from the comet’s head by the pressure of sunlight. As the comet continues along its orbital path, last week’s dust lingers behind, forming a “trail of breadcrumbs” in its wake. Right now those ...
Leonard's comet has been barreling through the galaxy en route to the sun for around 35,000 years, and Earthlings hoping to catch a glimpse should start keeping an eye on the sky, Margo Milanowski reports forPopular Science. Leonard will be visible for a couple of weeks ...
which propel the virus. Because the comet-associated viruses were observed not only inside the cytoplasm but also in the vicinity of cell–cell junctions, it has been proposed that the propelling force of the actin comet allows the virus to pass through the actin-reinforced cellular junction and...