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Latest News About Stars and Galaxies
Stars are giant, luminous spheres of plasma. Galaxies consist of stars, stellar remnants, dust, gas, and dark matter, bound together by gravity. Learn more about stars and galaxies.
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An elliptical and a spiral galaxy are pictured together in this new portrait from the Hubble Space Telescope.
The galaxy I Zwicky 18, originally thought to be a young galaxy, actually seems to have formed around the same time as most other galaxies in this space wallpaper.
Two very different galaxies were captured together by the Hubble Space Telescope: Messier 60, a large, old, and extremely bright elliptical galaxy; and NGC 4647, a young, blue spiral galaxy.
A star in the Messier 4 globular cluster appears to hold the secret of eternal youth.
Delphinus the dolphin and Cetus the whale are on view now.
This striking space wallpaper shows a beautiful yet peculiar pair of galaxies.
This new image of Messier 4, one of more than 150 globular star clusters orbiting around our galaxy, was recently captured by the ESO's La Silla Observatory in Chile. The image reveals tens of thousands of ancient stars.
This September skywatchers can catch a glimpse of four planets (Venus, Mars, Jupiter, and Saturn) as well as a visual trick in the constellation Capricornus that makes two stars look like one oddly enlongated star.
The ripples in space-time predicted by Einstein look to be responsible.
The graceful gravitational dance of two colliding galaxies can feed the supermassive black holes at their center, rearranging and heating up the gas within these galaxies as seen in this simulation.
Far away from light pollution and high up in the Sierra Nevada mountain range, Yosemite National Park's stunning views of the night sky and majestic natural wonders attract astronomers, photographers and city dwellers from around the country.
A number of night sky superlatives are overhead now.
Astronomers found molecules of a simple form of sugar, known as glycolaldehyde, around a young star.
Most stars come in pairs. NASA's Kepler space telescope has now confirmed a pair of planets orbiting a pair of stars about 5000 light years from Earth. So we see their light from long, long ago; but not so far away (& very much within our own galaxy)
The brightest planet and the largest star are just the start of the night's sky's extreme objects.
A look at these weird, light-gobbling cosmic monsters.
Periodic nova eruptions from a binary star system is a sign of bigger trouble brewing. Red giant stars donate mass to their white dwarf companions until - over a critical mass - the dwarves destroy themselves in Type 1a supernova explosions.
The two newfound galaxies are spirals with two large companion galaxies, just like our own Milky Way.
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