@nasa : Happy 4th of July! While fireworks only last a short time here on Earth, a bundle of cosmic sparklers in a nearby cluster of stars will be going off for a very long time. This is a star cluster populated with many young stars that are less than 2 million years old, a blink of an eye in astronomical terms for stars like the Sun expected to burn for billions of years. Image credit: X-ray: NASA/CXC/SAO/S.Wolk et al; Optical: DSS & NOAO/AURA/NSF; Infrared: NASA/JPL-Caltech #nasa #space #astronomy #science#fourthofjuly #happyindependenceday#independenceday #4thofjuly #fireworks
โพสต์เมื่อ 5 ก.ค. 2558 | 08:23 น.
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