保护地球，探索宇宙，发现文明
Expedition 68 Flight Engineers Nicole Mann of NASA and Koichi Wakata of the Japan Aerospace Exploration Agency are pictured on Jan. 12, 2023, during a fit check of their spacesuits inside the Quest airlock ahead of a planned spacewalk to upgrade the International Space Station’s power generation system. The spacewalk began on Jan. 20, 2023, at approxim...
2023年1月20日 Galaxy Wars: M81 and M82 Image Credit & Copyright: Andreas Aufschnaiter Explanation: The two dominant galaxies near center are far far away, 12 million light-years distant toward the northern constellation of the Great Bear. On the right, with grand spiral arms and bright yellow core is spiral galaxy M81. Also known as Bode’s galaxy, M8...
1月8日至12日，在西雅图举行的美国天文学会（AAS）第241次会议期间，科学家们在新闻发布会上分享了NASA詹姆斯·韦伯太空望远镜（也称为“韦伯”或“JWST”）的新发现和最新进展。
Snow and ice cover mountains of the Tien Shan range in this photograph taken from the International Space Station (ISS) on Feb. 9, 2022. The Tien Shan—which means heavenly mountains in Chinese—is one of the largest mountain ranges in the world, extending approximately 2,500 kilometers (1,550 miles) across Central Asia, mostly along the border between Kyrgyzs...
2023年1月19日 The Seagull Nebula Image Credit & Copyright: Carlos Taylor Explanation: A broad expanse of glowing gas and dust presents a bird-like visage to astronomers from planet Earth, suggesting its popular moniker – The Seagull Nebula. Using narrowband image data, this 3-panel mosaic of the cosmic bird covers a 2.5 degree swath across the plane ...
2023年1月18日 MACS0647: Gravitational Lensing of the Early Universe by Webb Image Credit: NASA, ESA, CSA, Dan Coe (STScI), Rebecca Larson (UT), Yu-Yang Hsiao (JHU); Processing: Alyssa Pagan (STScI); Text: Michael Rutkowski (Minn. St. U. Mankato) Explanation: Gravitational lensing by the galaxy cluster MACS0647 — in which the massive foreground cluster dis...
在太阳炽热的高层大气中，一组科学家发现了新的线索，可以帮助预测太阳下一次耀斑爆发的时间和地点。
Snoopy, the zero gravity indicator that flew aboard Orion during the Artemis I mission, wears a smile after being unpacked from his transport case on Jan. 5, 2023. Zero gravity indicators are small items carried aboard spacecraft that provide a visual indicator when a spacecraft has reached the weightlessness of microgravity. NASA has held an association wit...
2023年1月17日 Unexpected Clouds Toward the Andromeda Galaxy Image Credit & Copyright: Yann Sainty & Marcel Drechsler Explanation: Why are there oxygen-emitting arcs near the direction of the Andromeda galaxy? No one is sure. The gas arcs, shown in blue, were discovered and first confirmed by amateur astronomers just last year. The two main origin hypo...
2023年1月16日 Moon Enhanced Image Credit & Copyright: Darya Kawa Mirza Explanation: Our Moon doesn’t really look like this. Earth’s Moon, Luna, doesn’t naturally show this rich texture, and its colors are more subtle. But this digital creation is based on reality. The featured image is a composite of multiple images and enhanced to bring ...