Cold object delights astronomers
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Astrophysicists find a star-like object with a surface temperature just one tenth that of the Sun.
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NASA and university astronomers are eagerly awaiting  the launch of a&nbsp;space probe bound to collide with a comet and give  researchers a glimpse inside the solar system's&nbsp;icy  wanderers.&nbsp;
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An international team of astronomers has produced the first ever image of an astronomical object using high energy gamma rays, helping to solve a 100 year old mystery - an origin of cosmic rays.
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Astronomers detect a torrent of water ice pelting an embryonic star system.
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The Hubble Space Telescope has looked into a bubble of gas and dust being inflated by a young star's particles.
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Astronomers have made rare images of the heart of a popular comet and revealed jets of gas spiraling thousands of miles into space.
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Scientists have obtained their best measurement yet of the size and contents of a neutron star, an ultra-dense object containing the strangest and rarest matter in the Universe.
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A cosmic explosion that seems to have come out of nowhere&#x2014;thousands of light-years from the nearest collection of stars&#x2014;has left astronomers baffled.
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NASA's infrared eyes are probing the beginnings of both stars and planets.  In two separate observations, the Spitzer Space Telescope has uncovered the warm glow from a possible stellar infant and an icy disk where planets may one-day form.
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LONDON - A large, icy rock at the edge of our solar system was warm at some point, a finding that suggests planetary processes like volcanic activity, astronomers say.
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A discovery now has some astronomers entertaining visions of icy volcanoes roiling on some of the tiny worlds circling beyond Neptune, at least at one time.
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Observing the image of a faint object that lies close to a star is a demanding task as the object is generally hidden in the glare of the star. Characterising this object, by taking spectra, is an even harder challenge.
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Astronomers have found what they say is the best evidence yet for water, or at least steam, in the atmosphere of a planet around another star.
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Astronomers spot a space oddity in Earth's neighbourhood: a dead star with unusual characteristics.
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A tiny telescope has spotted a giant planet circling a faraway star, using a technique that could open a new phase of planetary discovery, scientists said on Tuesday.
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The surface of one of the brightest stars in the night sky is imaged by scientists.
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NASA's Opportunity Mars rover has come across  an interesting object&nbsp;-- perhaps a meteorite sitting out in the open at Meridiani  Planum. Initial data taken by the robot's Mini-Thermal Emission Spectrometer  (Mini-TES) is suggestive that the odd-looking rock is made of  metal.