FREE Stock Photos from PikWizard
  • Are You looking for:

  • city

  • landscape

  • adult

  • winter

  • technology

Photos Videos
More

Stars Background

Find and download star pictures on Pikwizard. We have thousands of free stock photos in our image library including star images and more.

54102
Perseids
189189
FREE star image
334877
FREE star image
233184
FREE star image
308626
FREE star image
1130
FREE star image
265432
FREE star image
267452
FREE star image
257672
FREE star image
9791
Using NASA’s Hubble Space Telescope, astronomers have captured for the first time snapshots of fledging white dwarf stars beginning their slow-paced, 40-million-year migration from the crowded center of an ancient star cluster to the less populated suburbs.  White dwarfs are the burned-out relics of stars that rapidly lose mass, cool down and shut off their nuclear furnaces. As these glowing carcasses age and shed weight, their orbits begin to expand outward from the star cluster’s packed downtown. This migration is caused by a gravitational tussle among stars inside the cluster. Globular star clusters sort out stars according to their mass, governed by a gravitational billiard ball game where lower mass stars rob momentum from more massive stars. The result is that heavier stars slow down and sink to the cluster's core, while lighter stars pick up speed and move across the cluster to the edge. This process is known as "mass segregation." Until these Hubble observations, astronomers had never definitively seen the dynamical conveyor belt in action.  Astronomers used Hubble to watch the white-dwarf exodus in the globular star cluster 47 Tucanae, a dense swarm of hundreds of thousands of stars in our Milky Way galaxy. The cluster resides 16,700 light-years away in the southern constellation Tucana.  Credits: NASA, ESA, and H. Richer and J. Heyl (University of British Columbia, Vancouver, Canada); acknowledgement: J. Mack (STScI) and G. Piotto (University of Padova, Italy)
3011
Sun Star Sunset
2652
Sun Star Sunset
2159
Sun Sunset Star
90177
Sun Star Sunset
6276
Sun Sunset Star
55132
Sun Sunset Star
576
Sun Star Celestial body
86130
Sun Star Celestial body
2026
Sun Sunset Star
5929
Sun Sunset Star
78135
Sun Star Sunset
9183
Sun Star Sunset
5992
Light Space Star
10013
Sun Sunset Star
117
Sun Sunset Star
5167
Sun Sunset Star
2774
Sun Star Sunset
78132
Sun Star Celestial body
2749
Sun Sunset Star
3179
Sun Sunset Star
4958
Sun Star Celestial body
5381
Sun Sunset Star
86185
Sun Sunset Star
2354
Sun Sunset Star
65149
Sun Sunset Star
61137
Star Light Space
15
Light Star 3d
84117
Sun Sunset Star
97197
Sun Sunset Star
6666
Sun Sunset Star
4257
Sun Star Celestial body
98279
Sun Star Celestial body
5965
Sun Star Celestial body
3259
Sun Star Sunset
5391
Sun Sunset Star
9623
Sun Sunset Star
44104
Sun Sunset Star
1226
Sun Sunset Star
Popular Image Categories
Popular Video Categories