Astronomers using NASA's Hubble Space Telescope have unexpectedly discovered the most distant galaxy that acts as a cosmic magnifying glass. Seen here as it looked billion years ago, this monster elliptical galaxy breaks .
Equinox Explained: Why Earth's Seasons Will Change on Sunday --- The sun crosses the celestial equator on September 22 at p. On this date the sun rises due east and sets due west, and the day and night are of equal length.
This image, taken by NASA’s Hubble Space Telescope, is a very thin section of a supernova remnant caused by a stellar explosion that occurred more than years ago.Â Â Image credit: Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
The “Black Widow” pulsar moves at a speed of KM/hr. A bow shock wave is the greenish crescent shape. The pressure behind the bow shock creates a second shock wave that sweeps the cloud of high-energy particles back from the pulsar to form the cocoon.