marian vlad

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marian vlad
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astronomy, outer space, space, universe, stars, planets, nebulas, asteroids

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"NEUTRON STARS are dying stars that are seemingly ‘off the charts’ in almost every category. They are small and extremely dense; about 20 km in diameter with masses of about 1.4 times that of our Sun, meaning that on Earth, one teaspoon of a neutron star would weigh about 100 million tons. They also rotate exceeding fast, about 700 times per second...the outer surface of these collapsed stars is likely to be 10 billion times stronger than steel or any other of Earth’s strongest alloys..."

Artist\'s impression of neutron star. Neutron stars are formed when large stars run out of fuel and collapse. To get a neutron star, you need to have star that’s larger than about solar masses and less than 5 times the mass of the Sun.

Glorious Sirius looks like one bright star but is actually a binary system (composed of 2 stars: Sirius A, the brighter & Sirius B, a faint white dwarf). It glitters like a silver-blue diamond!    Binary stars are too close to be distinguished from one another when observed from Earth and are hence mistaken for one. The two stars that make up a binary typically orbit about a common center of mass. The brightest star, Sirius is easy to see in the spring and winter skies.

Glorious Sirius looks like one bright star but is actually a binary system (composed of 2 stars - Sirius A, the brighter and Sirius B, a faint white dwarf). It glitters like a silver-blue diamond.

This "mosaic" image, also captured on January 19, 2015, shows the sun in multiple wavelengths.

Photograph by NASA/Goddard/SDO ‘An instrument on NASA’s Solar Dynamics Observatory (SDO) captured its 100 millionth image of the sun. The instrument is the Atmospheric Imaging Assembly, or AIA, which.