2019 December 31 M33: The Triangulum Galaxy Image Credit & Copyright: Rui Liao Explanation: The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, M33. Its popular names include the Pinwheel Galaxy or just the Triangulum Galaxy. M33 is over 50,000 light-yea […]
Newborn stars, hidden behind thick dust, are revealed in this image of a section of the so-called Christmas Tree Cluster from NASA’s Spitzer Space Telescope. The newly revealed infant stars appear as pink and red specks toward the center and appear to have formed in regularly spaced intervals
2019 December 15 Mammatus Clouds over Nebraska Image Credit & Copyright: Jorn Olsen Photography Explanation: When do cloud bottoms appear like bubbles? Normally, cloud bottoms are flat. This is because moist warm air that rises and cools will condense into water droplets at a specific temperatu
2019 November 18 Passing Asteroid Arrokoth Video Credit: NASA, JHU APL, SwRI Explanation: What would it look like to pass asteroid Arrokoth? The robotic New Horizons spacecraft zoomed past Arrokoth in January, 3.5 years after the spacecraft passed Pluto. If this object’s name doesn’t sou
2019 November 12 NGC 3717: A Nearly Sideways Spiral Galaxy Image Credit: ESA/Hubble & NASA, Processing: D. Rosario Explanation: Some spiral galaxies are seen nearly sideways. Most bright stars in spiral galaxies swirl around the center in a disk, and seen from the side, this disk can be appear
A student from Sinte Gleska University, an accredited tribal university on the Rosebud Sioux Reservation, works to build a model rover for a NASA Community College Aerospace Scholars (NCAS) rover competition at the 2018 American Indian Higher Education Consortium (AIHEC) Student Conference. View the
This week in 1967, the Apollo 4 mission launched from NASA’s Kennedy Space Center. The mission marked the first launch of the Saturn V rocket. Mission objectives included testing of structural integrity, compatibility of rocket and spacecraft, heat shield and thermal seal integrity, overall reentry
iss061e028414 (Nov. 4, 2019) — The U.S. Cygnus space freighter from Northrop Grumman is pictured in the grips of the Canadarm2 robotic arm as it was installed to the Unity module for 70 days of cargo transfers. iss061e028414(2019年11月4日)——被安装到Unity模块进行70天的货物运输的加拿大机械臂-2（Canadarm2），成功捕获了来自诺斯罗普·格鲁
2019 November 11 Lunar Craters Langrenus and Petavius Image Credit & Copyright: Eduardo Schaberger Poupeau Explanation: The history of the Moon is partly written in its craters. Pictured here is a lunar panorama taken from Earth featuring the large craters Langrenus, toward the left, and Petavi
