Edhat21 小时
Space X Launch And The Orion Constellation
On Monday, February 10 at 6:09 p.m, a SpaceX Falcon 9 launched 23 Starlink satellites to low-Earth orbit from Space Launch ...
One large Milky Way galaxy or many galaxies?
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
Scientific American3 小时
JWST Spies a Giant Space Hamburger—and Maybe Planetary Origins, Too
It’s neither fast nor food, but a spectacular object called HH 30 looks appetizing for astronomers in a new image from the ...
See The Best ‘Planet Parade’ For 40 Years As Venus Reaches Greatest Brilliancy
The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...