(PhysOrg.com) -- NASA's Spitzer Space Telescope has detected signs of icy bodies raining down in an alien solar system. The downpour resembles our own solar system several billion years ago during a period known as the "Late ...
Astronomy
Oct 20, 2011
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0
(PhysOrg.com) -- Two papers in this week's issue of Science report the first oxygen and nitrogen isotopic measurements of the Sun, demonstrating that they are verydifferent from the same elements on Earth. These results ...
Space Exploration
Jun 23, 2011
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Scientists in Australia's vast Outback on Monday recovered a capsule that they hope contains the first piece of asteroid ever brought to Earth -- perhaps offering a glimpse into ancient space history.
Space Exploration
Jun 14, 2010
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Jupiter has gotten whacked again.
Astronomy
Jun 4, 2010
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A study into the zinc isotope composition of meteorites by researchers from the University of St Andrews suggests that material from the outer solar system was an important source of volatile elements during the formation ...
Planetary Sciences
Aug 4, 2022
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277
Discovering that many of the large moons in the outer solar system may host significant subsurface oceans of liquid water has been a key advance in planetary science. These moons represent some of the most promising habitats ...
Planetary Sciences
May 9, 2022
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235
The solar system has eight planets. In 2006, astronomers reclassified Pluto as a dwarf planet, the same class that contains Eris, Sedna, Quaoar, Ceres and perhaps many more solar system small bodies. These are defined approximately ...
Astronomy
Mar 14, 2022
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815
Our solar system is believed to have formed from a cloud of gas and dust, the so-called solar nebula, which began to condense on itself gravitationally ~ 4.6 billion years ago. As this cloud contracted, it began to spin and ...
Planetary Sciences
Mar 14, 2022
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194
Earth and Mars were formed from material that largely originated in the inner solar system; only a few percent of the building blocks of these two planets originated beyond Jupiter's orbit. A group of researchers led by the ...
Planetary Sciences
Dec 23, 2021
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547
The moon was exposed to a heavy bombardment of asteroids 3.9 billion years ago. The origin of this bombardment, however, was previously unclear. Planetologists at Münster University have now tested these hypotheses with ...
Planetary Sciences
Nov 8, 2021
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