2022年7月9日 Saturn and the ISS Image Credit & Copyright: Tom Glenn Explanation: Soaring high in skies around planet Earth, bright planet Saturn was a star of June’s morning planet parade. But very briefly on June 24 it posed with a bright object in low Earth orbit, the International Space S […]
This NASA/ESA Hubble Space Telescope observation has captured the galaxy CGCG 396-2, an unusual multi-armed galaxy merger which lies around 520 million light-years from Earth in the constellation Orion. This observation is a gem from the Galaxy Zoo project, a citizen science project involving hundre
2022年7月8日 Roots on a Rotating Planet Image Credit & Copyright: Marcella Giulia Pace Explanation: With roots on a rotating planet, an old tree is centered in this sequence of 137 exposures each 20 seconds long, recorded one night from northern Sicily. Digital camera and fisheye lens were fixed t
在分析了2020年10月美国宇航局的OSIRIS-REx航天器从贝努小行星收集样本时收集到的数据后，科学家们发现了一件令人惊讶的事情：如果该航天器在抓取该小行星表面的灰尘和岩石后不立即发射推进器后退，该航天器本会坠入贝努小行星。 事实证明，构成贝努外表的颗粒是如此的松散，彼此之间的联系很轻，以至于如果一个人踩到贝努身上，他们几乎不会感觉到阻力，就像踩进了一个塑料球坑，这是孩子们喜欢玩的地方。 位于圣安东尼奥的西南研究所的OSIRIS-REx科学团队成员凯文·沃尔什说：“如果贝努被完全填满，那意味着它几乎是坚硬的岩石，但我们在表面发现了很多空隙。” 关于本努表面的最新发现于7月7日发表在《科学》
We’re less than one week away from the July 12, 2022, release of the first science-quality images from NASA’s James Webb Space Telescope, but how does the observatory find and lock onto its targets? Webb’s Fine Guidance Sensor (FGS), developed by the Canadian Space Agency, was designed w
2022年7月7日 The NGC 6914 Complex Image Credit & Copyright: Giorgio Ferrari Explanation: A study in contrasts, this colorful skyscape features stars, dust, and glowing gas in the vicinity of NGC 6914. The interstellar complex of nebulae lies some 6,000 light-years away, toward the high-flying nort
A new NASA citizen science project, Jovian Vortex Hunter, seeks your help spotting vortices – spiral wind patterns – and other phenomena in photos of the planet Jupiter. Another NASA citizen science project, called Junocam, seeks help from members of the public processing images from NASA’s Juno Mis
2022年7月6日 Milky Way Motion in 3D from Gaia Credit & License: ESA, Gaia, DPAC; Text: Ata Sarajedini (Florida Atlantic U., Astronomy Minute podcast) Explanation: Our sky is alive with the streams of stars. The motions of 26 million Milky Way stars are evident in the featured map constructed from
H1821+643是一个由超大质量黑洞驱动的类星体，距离地球约34亿光年。天文学家使用美国宇航局的钱德拉X射线天文台确定了H1821+643黑洞的自转，使其成为对这一基本性质进行精确测量的质量最大的黑洞，如我们在新闻稿中所述。天文学家估计，位于H1821+643的活跃黑洞包含约30亿至300亿太阳质量，是已知质量最大的黑洞之一。相比之下，银河系中心的超大质量黑洞重约400万个太阳。 这张H1821+643的合成图像包含来自钱德拉的X射线（蓝色），它与来自美国国家科学基金会卡尔·G·扬斯基甚大阵列（红色）的无线电数据和来自夏威夷泛星计划的光学图像（白色和黄色）相结合。研究人员使用了20多年前钱德
The last rays of an orbital sunset burst through Earth’s horizon as the International Space Station flew 258 miles above Brazil in this image from June 2022. In 24 hours, the space station makes 16 orbits of Earth, traveling through 16 sunrises and sunsets. Want more station facts? Visit Inter
