保护地球，探索宇宙，发现文明
In this view from aboard the SpaceX Crew Dragon Endeavour, a pair of the International Space Station’s main solar arrays seemingly drape across the Earth’s horizon as the orbital lab soars 271 miles above the south Atlantic in between Argentina and South Africa. Earth is a pale, blue dot when seen from space because our home planet is 71 percent ...
2021年06月08日 A Face in the Clouds of Jupiter from Juno Image Credit: NASA/JPL-Caltech/SwRI/MSSS/Jason Major Explanation: What do you see in the clouds of Jupiter? On the largest scale, circling the planet, Jupiter has alternating light zones and reddish-brown belts. Rising zone gas, mostly hydrogen and helium, usually swirls around regions of high pressure. C...
NASA astronaut Mark Vande Hei works on Celestial Immunity, an investigation of how gravity affects immune response, potentially supporting development of new vaccines and drugs to prevent and treat existing and emerging human diseases. Celestial Immunity evaluates the effects of gravity on functional immune response and the role of age in regulating immune p...
2021年06月07日 A Bright Nova in Cassiopeia Image Credit & Copyright: Chuck Ayoub Explanation: What’s that new spot of light in Cassiopeia? A nova. Although novas occur frequently throughout the universe, this nova, known as Nova Cas 2021 or V1405 Cas, became so unusually bright in the skies of Earth last month that it was visible to the unaided eye. Nova C...
2021年06月06日 A Distorted Sunrise Eclipse Image Credit & Copyright: Elias Chasiotis Explanation: Yes, but have you ever seen a sunrise like this? Here, after initial cloudiness, the Sun appeared to rise in two pieces and during partial eclipse, causing the photographer to describe it as the most stunning sunrise of his life. The dark circle near the top o...
2021年06月05日 The Shining Clouds of Mars Image Credit: NASA, JPL-Caltech, MSSS Explanation: The weathered and layered face of Mount Mercou looms in the foreground of this mosaic from the Curiosity Mars rover’s Mast Camera. Made up of 21 individual images the scene was recorded just after sunset on March 19, the 3,063rd martian day of Curiosity’s on...
Astronomers have detected X-rays from Uranus for the first time, using NASA’s Chandra X-ray Observatory, as shown in this image from March 2021. This result may help scientists learn more about this enigmatic ice giant planet in our solar system. Uranus is the seventh planet from the Sun and has two sets of rings around its equator. The planet, which has fou...
NASA Administrator Bill Nelson talks to the agency’s workforce during his first State of NASA event Wednesday, June 2, 2021, at NASA Headquarters Mary W. Jackson Building in Washington. Nelson remarked on his long history with NASA, and among other topics, discussed the agency’s plans for future Earth-focused missions to address climate change and a robotic ...
When NASA digital strategist Andres Almeida joined Twitter in 2009, one of the first accounts he followed was NASA. “I knew they were doing NASA ‘Tweetups’ (now called Socials) where members of the public could apply, go behind the scenes of a NASA facility and potentially attend a launch. “I was selected for the STS-135 Tweetup — the final launch of t...
2021年06月04日 Blood Monster Moon Image Credit & Copyright: Chirag Upreti Explanation: On May 26, the Full Flower Moon was caught in this single exposure as it emerged from Earth’s shadow and morning twilight began to wash over the western sky. Posing close to the horizon near the end of totality, an eclipsed lunar disk is framed against bare oak tree...