Gallery: Space Photos of the Week: Monster Stars Show the Sun Who's Boss
<a href="http://www.spacetelescope.org/news/heic1605/">NASA, ESA, P Crowther (University of Sheffield)</a>01SPoW-March-13-19-03.jpg
Astronomers using the unique ultraviolet capabilities of the NASA/ESA Hubble Space Telescope have identified nine monster stars with masses over 100 times the mass of the Sun in the star cluster R136. This makes it the largest sample of very massive stars identified to date. The results, which will be published in the Monthly Notices of the Royal Astronomical Society, raise many new questions about the formation of massive stars.
<a href="http://www.nasa.gov/feature/goddard/2016/picturing-the-sun-s-magnetic-field">NASA/SDO/AIA/LMSAL</a>02SPoW-March-13-19-04.jpg
This illustration lays a depiction of the sun's magnetic fields over an image captured by NASA’s Solar Dynamics Observatory on March 12, 2016. The complex overlay of lines can teach scientists about the ways the sun's magnetism changes in response to the constant movement on and inside the sun. Note how the magnetic fields are densest near the bright spots visible on the sun – which are magnetically strong active regions – and many of the field lines link one active region to another.
<a href="http://www.nasa.gov/image-feature/south-africa-from-the-space-stations-earthkam">NASA/EarthKAM.org</a>03SPoW-March-13-19-08.jpg
The remotely controlled Sally Ride EarthKAM aboard the International Space Station snapped this striking photograph during a flyover of South Africa on Feb. 9, 2016. The EarthKAM program allows students to request photographs of specific Earth features, which are taken by a special camera mounted on the space station when it passes over those features. The images are posted online for the public and students in participating classrooms around the world to view.
<a href="http://www.eso.org/public/images/eso1609b/">NASA/JPL-Caltech/UCLA/MPS/DLR/IDA</a>04SPoW-March-13-19-02.jpg
This image taken from NASA’s Dawn spacecraft in orbit around the dwarf planet Ceres shows the very bright patches of material in the crater Occator and elsewhere. New observations using the HARPS spectrograph on the ESO 3.6-metre telescope at La Silla in Chile have revealed unexpected daily changes on these spots, suggesting that they change under the influence of sunlight.
<a href="http://www.nasa.gov/image-feature/jpl/pia20064/gargantuan-super-spiral-galaxies-loom-large-in-the-cosmos">SDSS</a>05SPoW-March-13-19-07.jpg
In archived NASA data, researchers have discovered "super spiral" galaxies that dwarf our own spiral galaxy, the Milky Way, and compete in size and brightness with the largest galaxies in the universe. The unprecedented galaxies have long hidden in plain sight by mimicking the appearance of typical spirals. Three examples of super spirals are presented here in images taken by the Sloan Digital Sky Survey.
<a href="http://www.nasa.gov/image-feature/jpl/pia18362/tilted-terminator"> NASA/JPL-Caltech/Space Science Institute</a>06SPoW-March-13-19-09.jpg
NASA's Cassini spacecraft captured this view of Saturn's moon Enceladus that shows wrinkled plains that are remarkably youthful in appearance, being generally free of large impact craters. When viewed with north pointing up, as in this image, the day-night boundary line (or terminator) cuts diagonally across Enceladus, with Saturn approaching its northern summer solstice. The lit portion on all of Saturn's large, icy moons, including Enceladus and Saturn itself, is now centered on their northern hemispheres.
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