保护地球，探索宇宙，发现文明
NASA’s OSIRIS-REx is ready for touchdown on asteroid Bennu. On Aug. 11, the mission will perform its “Matchpoint” rehearsal – the second practice run of the Touch-and-Go (TAG) sample collection event. The rehearsal will be similar to the Apr. 14 “Checkpoint” rehearsal, which practiced the first two maneuvers of the descent, but this time the spacecraft...
The barred spiral galaxy known as NGC 4907 shows its starry face from 270 million light-years away to anyone who can see it from the Northern Hemisphere. This is a new image from the NASA/ESA Hubble Space Telescope of the face-on galaxy, displaying its beautiful spiral arms, wound loosely around its central bright bar of stars. Shining brightly below the gal...
This long-exposure photograph captures a starry sky above the Earth’s atmospheric glow as the International Space Station orbited above the Indian Ocean about halfway between South Africa and Australia. Image Credit: NASA 当国际空间站在南非和澳大利亚之间的印度洋上空绕轨道运行时，她的长曝光照片捕捉到了地球大气辉光上方繁星点点的星空。 影像来源：NASA
NASA’s Curiosity Mars Rover touched down eight years ago, on Aug. 5, 2012, and will soon be joined by another rover, Perseverance, which launched on July 30, 2020. Curiosity has seen a lot since it first set its wheels inside the 96-mile-wide (154-kilometer-wide) basin of Gale Crater. Its mission: to study whether Mars had the water, chemical building ...
For decades, astronomers have known about irregular outbursts from the double star system V745 Sco, which is located about 25,000 light years from Earth. V745 Sco is a binary star system that consists of a red giant star and a white dwarf locked together by gravity. These two stellar objects orbit so closely around one another that the outer layers of the re...
NASA astronauts Robert Behnken and Douglas Hurley are aboard the SpaceX Crew Dragon Endeavour spacecraft as it is lifted onto the SpaceX GO Navigator recovery ship shortly after landing in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA’s Commercial Crew Program was the first to deliver astr...
NASA astronauts Robert Behnken, left, and Douglas Hurley are seen inside the SpaceX Crew Dragon Endeavour spacecraft onboard the SpaceX GO Navigator recovery ship shortly after having landed in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA’s Commercial Crew Program was the first to deliver...
Astronauts Doug Hurley and Bob Behnken of NASA’s Commercial Crew Program are aboard the SpaceX Crew Dragon as it approaches the International Space Station on May 31, 2020. The Crew Dragon’s nose cone is open revealing the spacecraft’s docking mechanism that would connect to the Harmony module’s forward International Docking Adapter. ...
The engines fire as a United Launch Alliance Atlas V rocket with NASA’s Mars Perseverance rover onboard launches from Space Launch Complex 41, Thursday, July 30, 2020, at Cape Canaveral Air Force Station in Florida. The Perseverance rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. Image Credit: NA...
A United Launch Alliance Atlas V rocket with NASA’s Mars 2020 Perseverance rover onboard launches from Space Launch Complex 41 at Cape Canaveral Air Force Station, Thursday, July 30, 2020. The Perseverance rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. Image Credit: NASA/Joel Kowsky 2020年7月30日星期...