Portal:Astronomy/Did you know/7


 * ... that Abell 2142, a galaxy cluster, is one of the most massive objects in the universe?
 * ... that a jet from one of the component stars of Z Canis Majoris is over 11 light-years long?
 * ... that Messier 58 is one of the brightest galaxies in the Virgo Cluster and is 1 of 4 barred spiral galaxies included in Charles Messier's catalog?
 * ... that the asteroid 2014 AA entered Earth's atmosphere on the early morning of January 2, 2014, less than a day after it was discovered?
 * ... that ATIC, a balloon-borne detector flying over Antarctica, recently found excess cosmic ray electrons that might provide evidence for dark matter consisting of Kaluza-Klein particles?
 * .... that the Sun fuses about 620 million metric tons of hydrogen per seconds due to Gravity?