Astronomy & Space news

Wandering Jupiter accounts for our unusual solar system

Long before Mercury, Venus, Earth, and Mars formed, it seems that the inner solar system may have harbored a number of super-Earths—planets larger than Earth but smaller than Neptune. If so, those planets are long gone—broken ...

dateMar 23, 2015 in Astronomy
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Milky Way's center unveils supernova 'dust factory'

Sifting through the center of the Milky Way galaxy, astronomers have made the first direct observations - using an infrared telescope aboard a modified Boeing 747 - of cosmic building-block dust resulting from an ancient ...

dateMar 19, 2015 in Astronomy
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A second minor planet may possess Saturn-like rings

There are only five bodies in our solar system that are known to bear rings. The most obvious is the planet Saturn; to a lesser extent, rings of gas and dust also encircle Jupiter, Uranus, and Neptune. The fifth member of ...

dateMar 16, 2015 in Astronomy
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New clues from the dawn of the solar system

A research group in the UA Lunar and Planetary Laboratory has found evidence in meteorites that hint at the discovery of a previously unknown region within the swirling disk of dust and gas known as the protoplanetary disk ...

dateMar 16, 2015 in Space Exploration
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