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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Red, White & Blue! Stars Cluster in Festive Cosmic Portrait
Cluster NGC 2367
July 4th, 2015
A cluster of bright, young blue stars shows up vividly against the red hydrogen gas of their surrounding stellar birthplace in a stunning photo out just in time for the Fourth of July.
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Stellar Rejuvenation: Some Exoplanets May Get Facelifts
Artist’s Concept of ‘Rejuvenated Exoplanet’
June 26th, 2015
Astronomers may have discovered an exoplanet that has found the elixir to planetary youth — streams of radiation from its white dwarf star, which could have knocked billions of years off its apparent age.
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Find the Crow and the Cup in June's Night Sky
Hydra, Corvus and Crater Constellations Image
June 12th, 2015
The night sky features a swan, an eagle, a dove, a crane, a toucan, a peacock, a bird of paradise and even a mythical phoenix. And over toward the south as night falls during these late spring evenings is yet another: Corvus, the Crow.
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How to Find Pluto in the Night Sky: July 1
Pluto Sky Map July 1, 2015
July 1st, 2015
In anticipation of the New Horizons flyby of Pluto on July 14, this sky chart can help you find Pluto in the night sky (with the assistance of a high-power telescope).
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Ancient Carbon Haze Offers Clues to Galaxy Evolution
ALMA View of Four Ancient Galaxies
June 24th, 2015
Astronomers have detected carbon smog permeating the interstellar atmospheres of early galaxies, confirming that these ancient galaxies were mostly dust free. The discovery should shed light on how galaxies grew in the universe's early days.
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How to See Ursa Minor, the Night Sky's Little Dipper
Polaris and the Little Dipper
June 12th, 2015
A skywatcher's guide to the constellation Ursa Minor, also known as the Little Dipper or the Little Bear. Most people have never seen the Little Dipper, simply because most of its stars are too dim to be viewed through light-polluted skies.
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Brightest Galaxy in the Universe Found
Most Luminous Galaxy in the Universe
May 22nd, 2015
A newfound galaxy 12.5 billion light-years from Earth is the most luminous one known in the universe, blazing more brightly than 300 trillion suns. The engine behind the galaxy's brilliance may be a supermassive black hole, researchers said.
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Look for the Great Hercules Kneeling in the Sky This Week
Hercules Constellation Sky Map
June 27th, 2015
Look skyward around 11 p.m. local time this week to see an ancient star pattern almost directly overhead: the hero of legends, Hercules.
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Software or the Borg: A Starship's Greatest Threat?
Starship in Space
June 1st, 2015
Borg-like assimilation may not be an interstellar reality, but having a resilient software system is essential to ensure your starship can cope with any scenario in the depths of space.
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