This slow pan of the Butterfly or Bug Nebula captures the detail available in the Hubble image of the planetary nebula, located 3,800 light-years away from Earth. The nebula’s gas is tearing across space at more than 600,000 miles per hour.... Read More إقرأ المزيد | Share it now!

A 3-D model of the Helix Nebula shows a structure much more complex than suspected. The Helix Nebula is a planetary nebula, created when gas is expelled by a dying, Sun-sized star. The star becomes a white dwarf — look for it in the center of the Helix.... Read More إقرأ المزيد | Share it now!

Here’s just a video of me showing you guys what I got for Christmas. No, I am not a spoiled guy, and no I didn’t get much either. Hope you guys enjoy!... Read More إقرأ المزيد | Share it now!

Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” In January, see the Quadrantid meteor shower and find the double-star Capella.... Read More إقرأ المزيد | Share it now!

The James Webb Space Telescope will experience intense forces as it launches into space. To ensure that the different parts of the observatory won’t suffer damage during this stage of the mission, engineers shake them rigorously. These two- to three-week-long vibration tests are performed on each of Webb’s 18 primary mirror segments and the secondary, tertiary, and fine-steering mirrors. Engineers test the mirror’s optics before and after each vibration test to confirm that the simulated launch left the mirror surface unscathed, without deformation or structural changes.... Read More إقرأ المزيد | Share it now!

Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” In December, Mars and Saturn are morning planets, and look for the M103 cluster in Perseus.... Read More إقرأ المزيد | Share it now!

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