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.
Whether big or small, stars mostly form the same way; stellar gasses accumulating and slowly condensing until a fusion reaction is started. However, stars can die in different way, from super nova explosions to slow, steady decay.
Stars are being born today at just 3 percent the rate of the universe's long-ago peak.
The Centaurus A elliptical galaxy may have swallowed a spiral in its past.
The gorgeous photo depicts the galaxy NGC 3738, which is 12 million light-years from Earth.
A red giant star named BD+ 48 740, consumed a rocky world according to observations made by the 9.2 meter Hobby-Eberly Telescope. High amounts of lithium contained in the red giant tell this tale of planetary destruction.
This space wallpaper shows a pair of gravitationally interacting galaxies called Arp 147, the blue ring-shaped galaxy's distinctive look was probably created when the galaxy on the left passed through the galaxy on the right.
Stargazers can catch the constellations of Cassiopeia, Cepheus and Andromeda overhead this week.
NASA's Fermi telescope has detected some of the first light emitted by stars in the early universe.
Ancient supernovas occurred shortly after the universe was born in the Big Bang.
The galaxy's core may have been puffed up by a black hole merger, scientists say.
A pervasive radiation throughout the sky has befuddled scientists.
The huge 9-gigapixel image was snapped by a telescope in Chile.
By combining thousands of infrared images by Europe's dust-piercing VISTA telescope, astronomers have been able study more Milky Way stars than ever before.
Material falling into a black hole has created a cosmic jet similar to those seen streaming from jet planes.
Researchers had thought disks like our own Milky Way had been static for the last 8 billion years.
A study of 544 star-forming galaxies observed by the Keck and Hubble telescopes shows that disk galaxies like our own Milky Way unexpectedly reached their current state long after much of the universe's star formation had ceased.